Questions on Algebra: Linear Equations, Graphs, Slope answered by real tutors!

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Question 940738: find the value for k for which the line 2x+ky=16 is parallel to y-axis
Click here to see answer by MathLover1(20849) About Me 

Question 940677: If the larger of the two numbers is divided by the smaller,the quotient and the reminder are 2 each.If 5 times the smaller number is divided by the larger,the quotient and the reminder are still 2 each.Find the two numbers.

Click here to see answer by Theo(13342) About Me 

Question 940747: What is the slope of the line passing through the points (6, -4) and (8, -7)?
Click here to see answer by stanbon(75887) About Me 

Question 940739: What is the y-coordinate of the solution to the system of equations?
y = x - 2
y = -x - 4

Click here to see answer by Fombitz(32388) About Me 

Question 940756: Based on the graph below, what are the solutions to the equation f(x) = g(x)?
graph of function f of x equals 4 times x minus 3. Graph of function g of x equals x cubed minus x squared minus 4 times x plus 4.

Click here to see answer by Fombitz(32388) About Me 

Question 940779: Given: K(0, 4), A(3, 6), T(6, 2), E(0, -2)
Prove: KATE is a trapezoid
Find the slope of all 4 sides- show all work

Click here to see answer by Alan3354(69443) About Me 

Question 940757: The steps to derive the quadratic formula are shown below:
Step 1: ax2 + bx + c = 0
Step 2: x2 + b over ax + c over a = 0
Step 3: x2 + b over ax = - c over a
Step 4: x2 +b over a x + square of quantity of b over 2 times a = - c over a + square of quantity of b over 2 times a
Step 5: x plus b over 4a, all square = - c over a+ square of quantity of b over 2 times a
Step 6: x + b over 2 times a = square root of all of negative c over a plus the square of the quantity b over 2 times a
Step 7: x = - b over 2 times a± square root of all of negative c over a plus the square of the quantity b over 2 times a = -b over 2 times a ± square root of the quantity of b squared minus 4 times a times c over 4 times a squared= negative b plus or minus square root of b squared minus 4 times a times c over 2 times a
Which of the following statements best describes the first incorrect step?

Click here to see answer by josgarithmetic(39617) About Me 
Question 940757: The steps to derive the quadratic formula are shown below:
Step 1: ax2 + bx + c = 0
Step 2: x2 + b over ax + c over a = 0
Step 3: x2 + b over ax = - c over a
Step 4: x2 +b over a x + square of quantity of b over 2 times a = - c over a + square of quantity of b over 2 times a
Step 5: x plus b over 4a, all square = - c over a+ square of quantity of b over 2 times a
Step 6: x + b over 2 times a = square root of all of negative c over a plus the square of the quantity b over 2 times a
Step 7: x = - b over 2 times a± square root of all of negative c over a plus the square of the quantity b over 2 times a = -b over 2 times a ± square root of the quantity of b squared minus 4 times a times c over 4 times a squared= negative b plus or minus square root of b squared minus 4 times a times c over 2 times a
Which of the following statements best describes the first incorrect step?

Click here to see answer by MathTherapy(10552) About Me 

Question 940814: I have no idea how to do these, please show me, thank you
``Given: K(0, 4), A(3, 6), T(6, 2), E(0, -2)
Prove: KATE is a trapezoid
Find the slope of all 4 sides- show all work

Click here to see answer by MathLover1(20849) About Me 

Question 940838: FIND THE SLOPE AND PROVE THAT THESE TWO LEGS ARE NOT PARALLEL
A. ( 3,6 )
T ( 6,2 )

Click here to see answer by Alan3354(69443) About Me 

Question 940924: How do you graph 2x-3y=12
Click here to see answer by macston(5194) About Me 

Question 940762: A quadratic function and an exponential function are graphed below. Which graph most likely represents the exponential function?
graph of function g of x is a curve which joins the ordered pair 0, 1 and 1, 2 and 3, 8 and 5, 32 and 6, 64. Graph of function f of x is a curve which joins the ordered pair 0, 1 and 1, 2 and 3, 10 and 5, 26 and 6, 37
1. f(x), because an increasing quadratic function will eventually exceed an increasing exponential function.
2. g(x), because an increasing exponential function will eventually exceed an increasing quadratic function.
3. f(x), because an increasing exponential function will always exceeds an increasing quadratic function until their graphs intersect.
4. g(x), because an increasing quadratic function will always exceeds an increasing exponential function until their graphs intersect.

Click here to see answer by richard1234(7193) About Me 

Question 940895: How would I figure out 4x + 9y = -108 now find the y intercept of that line
Click here to see answer by Fombitz(32388) About Me 

Question 940901: Determine the value of t so that the slope of the line through each pair of points has the given value.
(–4,5t), (5,2t); slope = 1/3

Click here to see answer by Fombitz(32388) About Me 

Question 940986: Dean buys 4 candy bars and a pack of gum for $2.75
Robin buys 2 candy bars and 3 packs of gums for $2.25. What is the cost of each item?

Click here to see answer by ewatrrr(24785) About Me 

Question 941188: find the value of k so that the line contains (4, -3k) and (2k,5) has a slope of m = 5/2
Click here to see answer by stanbon(75887) About Me 

Question 941342: Find the equation of the diameter of the circle x^2+y^2-4x+6y=14 which passes through the origin
Click here to see answer by josgarithmetic(39617) About Me 

Question 941329: p+6<8

Click here to see answer by Fombitz(32388) About Me 

Question 941442: a line in the cartesian plane passes through the points (-2, 4) and (2, -1). what is the rise and run of the line?
Click here to see answer by TimothyLamb(4379) About Me 

Question 941478: Determine the slope and y-intercept of the given linear equation.
−8x + 2y = 5

Click here to see answer by MathLover1(20849) About Me 

Question 941503: The difference quotient, D, is defined by the equation:
D= f(x+h)-f(x)÷h

Find D if f(x) = [3]x^2 + [7]x + [6] and simplify your answer. (Show steps)

Click here to see answer by MathLover1(20849) About Me 

Question 941627: Find an equation of the line through (4,7) and parallel y=2x+1 write equation using function notation

Click here to see answer by TimothyLamb(4379) About Me 

Question 941637: find the slope intercept form of a line that is perpendicular to the line 2x-7y=3 and has a x intercept of 4
Click here to see answer by stanbon(75887) About Me 

Question 941648: write an equation of the line parallel to 5y = 3x + 12 that has a y-intercept of 2
Click here to see answer by TimothyLamb(4379) About Me 

Question 941699: Hi,
I am having trouble in knowing which side i am supposed to shade, i know that if it is less than or less than or equal to i have to shade below. And above for greater than or greater than or equal to. but i do not understand which is up and wich is down.
Can u Please help me with the equation "y ≤-x"
Thank you

Click here to see answer by MathLover1(20849) About Me 

Question 941749: What is the equations by graphing
y=-x-1
y=x-7

Click here to see answer by MathLover1(20849) About Me 

Question 941730: What two numbers can be subtracted to equal 0 and added together to equal 2 other than (1,1)?
Click here to see answer by Alan3354(69443) About Me 

Question 941776: For the problem given below, set up an equation and solve. Show all work (including what your variables represent), detailing each step, to ensure that I am able to follow your work. Clearly state your solution. Please and thank you
The problem:
If the product of two consecutive positive even integers is equal to 168, then what are the integers.

Click here to see answer by macston(5194) About Me 

Question 942042: sophie earns a salary of $500 per month for working 3 hours a day. in may, sophie worked additional hours at $12 per hour and earned $536 for the month.
write an equation to model this situation where m is the number of additional hours she worked in may?
find the total number of additional hours she worked in may?

Click here to see answer by stanbon(75887) About Me 

Question 942107: Identify the solution(s) of the system of equations, if any.
-2x-4y=1
12y=-6x-3
find x and y using subsitution

Click here to see answer by josgarithmetic(39617) About Me 

Question 942129: -x+3y=10
2x+8y=-6

Click here to see answer by TimothyLamb(4379) About Me 

Question 942105: Identify the solution(s) of the system of equations, if any.
-2x-4y=1
12y=-6x-3

Click here to see answer by viston(1) About Me 

Question 942104: Identify the solution(s) of the system of equations, if any.
x+2y=4
9x-4y=3

Click here to see answer by Fombitz(32388) About Me 

Question 941993: I need to solve the system of equations 2x-5y+3z=-1 x+4y-2z=9 x-2y-4z=-5
Click here to see answer by Fombitz(32388) About Me 

Question 942280: Write an equation of the line containing the given point and parallel to the given line. Express your answer in the form 
y=mx+b.


(6,7); 
x+8y=7

Click here to see answer by Alan3354(69443) About Me 

Question 942287: I don't get this 8 intercept of 10
Click here to see answer by Alan3354(69443) About Me 

Question 942350: Find an equation of the line that goes through the points (10,64) and (-7,-55). Write your answer in the form y=mx+b.

Click here to see answer by josgarithmetic(39617) About Me 
Question 942350: Find an equation of the line that goes through the points (10,64) and (-7,-55). Write your answer in the form y=mx+b.

Click here to see answer by MathTherapy(10552) About Me 

Question 942419: Which of the following is a line which is perpendicular to the line 3x+7y+2=0?
The answer is 7x-3y+5=0
this is how I solve the problem.
3x+7y+2=0
y=-2/7-3x/7
-1/m= -1/-3/7=7/3
7/3= slope
y-y0=m (x-x0)
y=7/3(x-0)
y=7/3
bx+ay=0
7x+3y=0
Where did they get 7x-3y +5=0?

Click here to see answer by Theo(13342) About Me 

Question 942442: What is the slope of the linear equation y = 13x + 11?




Click here to see answer by Alan3354(69443) About Me 

Question 942529: So I have a question on a homework assignment that I just did on graphing linear equations with 2 variables.
The equation is
3x=11
need to find the x intercept and the y intercept numbers. I know what the x intercept is but can't figure out the y intercept. can you please let me know what the y intercept is with full step by step process.
thanks
jessie

Click here to see answer by richard1234(7193) About Me 

Question 942560: M= 5/6 (3,-3) solve for the slope
Click here to see answer by rfer(16322) About Me 

Question 942441: What is the slope of the linear equation y = 13x + 11?

Click here to see answer by rfer(16322) About Me 

Question 942599: an equation in point- slope form and slope- intercept form for (Passing through (-2,-7) and parallel to the line whose equation is y=-5x+4)
Click here to see answer by lwsshak3(11628) About Me 

Question 942872: Find a linear equation whose graph is the straight line with the given property.
Through (1/3, -1) and parallel to the line 3x-4y=9

Click here to see answer by TimothyLamb(4379) About Me 

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 14356..14400, 14401..14445, 14446..14490, 14491..14535, 14536..14580, 14581..14625, 14626..14670, 14671..14715, 14716..14760, 14761..14805, 14806..14850, 14851..14895, 14896..14940, 14941..14985, 14986..15030, 15031..15075, 15076..15120, 15121..15165, 15166..15210, 15211..15255, 15256..15300, 15301..15345, 15346..15390, 15391..15435, 15436..15480, 15481..15525, 15526..15570, 15571..15615, 15616..15660, 15661..15705, 15706..15750, 15751..15795, 15796..15840, 15841..15885, 15886..15930, 15931..15975, 15976..16020, 16021..16065, 16066..16110, 16111..16155, 16156..16200, 16201..16245, 16246..16290, 16291..16335, 16336..16380, 16381..16425, 16426..16470, 16471..16515, 16516..16560, 16561..16605, 16606..16650, 16651..16695, 16696..16740, 16741..16785, 16786..16830, 16831..16875, 16876..16920, 16921..16965, 16966..17010, 17011..17055, 17056..17100, 17101..17145, 17146..17190, 17191..17235, 17236..17280, 17281..17325, 17326..17370, 17371..17415, 17416..17460, 17461..17505, 17506..17550, 17551..17595, 17596..17640, 17641..17685, 17686..17730, 17731..17775, 17776..17820, 17821..17865, 17866..17910, 17911..17955, 17956..18000, 18001..18045, 18046..18090, 18091..18135, 18136..18180, 18181..18225, 18226..18270, 18271..18315, 18316..18360, 18361..18405, 18406..18450, 18451..18495, 18496..18540, 18541..18585, 18586..18630, 18631..18675, 18676..18720, 18721..18765, 18766..18810, 18811..18855, 18856..18900, 18901..18945, 18946..18990, 18991..19035, 19036..19080, 19081..19125, 19126..19170, 19171..19215, 19216..19260, 19261..19305, 19306..19350, 19351..19395, 19396..19440, 19441..19485, 19486..19530, 19531..19575, 19576..19620, 19621..19665, 19666..19710, 19711..19755, 19756..19800, 19801..19845, 19846..19890, 19891..19935, 19936..19980, 19981..20025, 20026..20070, 20071..20115, 20116..20160, 20161..20205, 20206..20250, 20251..20295, 20296..20340, 20341..20385, 20386..20430, 20431..20475, 20476..20520, 20521..20565, 20566..20610, 20611..20655, 20656..20700, 20701..20745, 20746..20790, 20791..20835, 20836..20880, 20881..20925, 20926..20970, 20971..21015, 21016..21060, 21061..21105, 21106..21150, 21151..21195, 21196..21240, 21241..21285, 21286..21330, 21331..21375, 21376..21420, 21421..21465, 21466..21510, 21511..21555, 21556..21600, 21601..21645, 21646..21690, 21691..21735, 21736..21780, 21781..21825, 21826..21870, 21871..21915, 21916..21960, 21961..22005, 22006..22050, 22051..22095, 22096..22140, 22141..22185, 22186..22230, 22231..22275, 22276..22320, 22321..22365, 22366..22410, 22411..22455, 22456..22500, 22501..22545, 22546..22590, 22591..22635, 22636..22680, 22681..22725, 22726..22770, 22771..22815, 22816..22860, 22861..22905, 22906..22950, 22951..22995, 22996..23040, 23041..23085, 23086..23130, 23131..23175, 23176..23220, 23221..23265, 23266..23310, 23311..23355, 23356..23400, 23401..23445, 23446..23490, 23491..23535, 23536..23580, 23581..23625, 23626..23670, 23671..23715, 23716..23760, 23761..23805, 23806..23850, 23851..23895, 23896..23940, 23941..23985, 23986..24030, 24031..24075, 24076..24120, 24121..24165, 24166..24210, 24211..24255, 24256..24300, 24301..24345, 24346..24390, 24391..24435, 24436..24480, 24481..24525, 24526..24570, 24571..24615, 24616..24660, 24661..24705, 24706..24750, 24751..24795, 24796..24840, 24841..24885, 24886..24930, 24931..24975, 24976..25020, 25021..25065, 25066..25110, 25111..25155, 25156..25200, 25201..25245, 25246..25290, 25291..25335, 25336..25380, 25381..25425, 25426..25470, 25471..25515, 25516..25560, 25561..25605, 25606..25650, 25651..25695, 25696..25740, 25741..25785, 25786..25830, 25831..25875, 25876..25920, 25921..25965, 25966..26010, 26011..26055, 26056..26100, 26101..26145, 26146..26190, 26191..26235, 26236..26280, 26281..26325, 26326..26370, 26371..26415, 26416..26460, 26461..26505, 26506..26550, 26551..26595, 26596..26640, 26641..26685, 26686..26730, 26731..26775, 26776..26820, 26821..26865, 26866..26910, 26911..26955, 26956..27000, 27001..27045, 27046..27090, 27091..27135, 27136..27180, 27181..27225, 27226..27270, 27271..27315, 27316..27360, 27361..27405, 27406..27450, 27451..27495, 27496..27540, 27541..27585, 27586..27630, 27631..27675, 27676..27720, 27721..27765, 27766..27810, 27811..27855, 27856..27900, 27901..27945, 27946..27990, 27991..28035, 28036..28080, 28081..28125, 28126..28170, 28171..28215, 28216..28260, 28261..28305, 28306..28350, 28351..28395, 28396..28440, 28441..28485, 28486..28530, 28531..28575, 28576..28620, 28621..28665, 28666..28710, 28711..28755, 28756..28800, 28801..28845, 28846..28890, 28891..28935, 28936..28980, 28981..29025, 29026..29070, 29071..29115, 29116..29160, 29161..29205, 29206..29250, 29251..29295, 29296..29340, 29341..29385, 29386..29430, 29431..29475, 29476..29520, 29521..29565, 29566..29610, 29611..29655, 29656..29700, 29701..29745, 29746..29790, 29791..29835, 29836..29880, 29881..29925, 29926..29970, 29971..30015, 30016..30060, 30061..30105, 30106..30150, 30151..30195, 30196..30240, 30241..30285, 30286..30330, 30331..30375, 30376..30420, 30421..30465, 30466..30510, 30511..30555, 30556..30600, 30601..30645, 30646..30690, 30691..30735, 30736..30780, 30781..30825, 30826..30870, 30871..30915, 30916..30960, 30961..31005, 31006..31050, 31051..31095, 31096..31140, 31141..31185, 31186..31230, 31231..31275, 31276..31320, 31321..31365, 31366..31410, 31411..31455, 31456..31500, 31501..31545, 31546..31590, 31591..31635, 31636..31680, 31681..31725, 31726..31770, 31771..31815, 31816..31860, 31861..31905, 31906..31950, 31951..31995, 31996..32040, 32041..32085, 32086..32130, 32131..32175, 32176..32220, 32221..32265, 32266..32310, 32311..32355, 32356..32400, 32401..32445, 32446..32490, 32491..32535, 32536..32580, 32581..32625, 32626..32670, 32671..32715, 32716..32760, 32761..32805, 32806..32850, 32851..32895, 32896..32940, 32941..32985, 32986..33030, 33031..33075, 33076..33120, 33121..33165, 33166..33210, 33211..33255, 33256..33300, 33301..33345, 33346..33390, 33391..33435, 33436..33480, 33481..33525, 33526..33570, 33571..33615, 33616..33660, 33661..33705, 33706..33750, 33751..33795, 33796..33840, 33841..33885, 33886..33930, 33931..33975, 33976..34020, 34021..34065, 34066..34110, 34111..34155, 34156..34200, 34201..34245, 34246..34290, 34291..34335, 34336..34380, 34381..34425, 34426..34470, 34471..34515, 34516..34560, 34561..34605, 34606..34650, 34651..34695, 34696..34740, 34741..34785, 34786..34830, 34831..34875, 34876..34920, 34921..34965, 34966..35010, 35011..35055, 35056..35100, 35101..35145, 35146..35190, 35191..35235, 35236..35280, 35281..35325, 35326..35370, 35371..35415, 35416..35460, 35461..35505, 35506..35550, 35551..35595, 35596..35640, 35641..35685, 35686..35730, 35731..35775, 35776..35820, 35821..35865, 35866..35910, 35911..35955, 35956..36000, 36001..36045