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

Algebra ->  Linear-equations -> Questions on Algebra: Linear Equations, Graphs, Slope answered by real tutors!      Log On


   



Tutors Answer Your Questions about Linear-equations (FREE)


Question 721426: how do you find the equation of the line through ( 1,2 ) and parallel to the line y = 7x-2
Click here to see answer by Alan3354(69443) About Me 

Question 721495: Which of the following could be the equation of a line perpendicular to the line "y=3x-6"?
A y= 1/3x - 6
B y= 3x + 2
C y= -3x + 2
D y= -1/3x - 6

Click here to see answer by ajones305(5) About Me 

Question 721528: The equation is
1(less than or equal to) 3/2z-2 (less than or equal to) 4
It says to list it in algebraic notation and I am so lost on how to do this.

Click here to see answer by unlockmath(1688) About Me 

Question 721558: x/6 - x =5
Click here to see answer by rfer(16322) About Me 

Question 721674: Can you please help me solve 9x=-2y ?
Thank you!

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

Question 721726: What is 4x+20?
Click here to see answer by solver91311(24713) About Me 

Question 721760: Please help
complete the ordered pairs so htat each is a soluction of the given linear equation. Then graph the equation.
equation x=5+y
X Y
0
-1
5

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

Question 721765: Sometimes mathematical models other than linear models are appropriate for data. Suppose that an equation of the form y=ax^2+bx+c is an appropriate model for the ordered pairs (x1,y1),(x2,y2), and (x3,y3). Then it is necessary to find the values of a,b, and c such that the given ordered pairs are solutions of the equation y=ax^2+bx+c. To do so, substitute each ordered pair into the equation. Solving the resulting system of three linear equations in three unknowns will give the required values of a, b, and c.
The tables gives the total beef supply (in billions of pounds) in the United States in each of the years listed.
Total U.S Beef Supply
Year- Beef Supply (billions of pounds)
1999- 29.8
2001- 29.9
2003- 30.1
(a) Write the data as ordered pairs of the form (x,y), where y is the beef supply (in billions of pounds) in the year x (x=0 represents 1999).
(b) Find the values of a, b, and c such that the equation y=ax^2+bx+c models this data.
(c) According to the model, what was the U.S. beef supply in 2002?

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

Question 721785: 2x-3y= -6
I need help understanding how you would graph this. I am not understanding. I have found the slope and Y-intercept.
Slope is 2/3
Y-intercept is -2
I'm unsure if these are correct so if you could please help me make sure I did this problem correct I would apperciate it.

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

Question 721855: Water is slowly leaking from a large bottle. The percent y (in decimal form) of water remaining the bottle after x hours is y = -0.02x + 1
a. graph the equation
b. interpret the x and y intercepts
c. interpret the slope
d when will the bottle be one quarter full

Click here to see answer by solver91311(24713) About Me 

Question 721924: X4-2x2+9
Click here to see answer by Alan3354(69443) About Me 

Question 721996: How do this operation
Y=2x-3, x=3

Click here to see answer by MithrilKnights(8) About Me 

Question 722056: If a straight line x-y graph has a slope of 1.7 and and a y interecpt of 8.0 what is the equation of the line?
a. y=1.7x+8.0
b. 8.0y=1.7x
c. y=8.0x+1.7
d. y=x+0.21

Click here to see answer by mananth(16946) About Me 

Question 722154: (1,7)write the equation of the line with the given properties.
Click here to see answer by Alan3354(69443) About Me 

Question 722174: y=ax^2+bx+c
(0,29.8): 0a+0b+1=29.9
(2,29.9): 4a+2b+1=29.9
(4,30.1): 16a+4b+1=30.1
Find the values of a, b, and c such that y=ax^2+bx+c models this data. (Make into one equation).

Click here to see answer by solver91311(24713) About Me 

Question 722340: the sum of 3h and k divided by 2
Click here to see answer by MathLover1(20849) About Me 

Question 722376: I can't figure out how to do this problem.
The sum of three times a number and 7 more than the number is the same as the difference between-11 and twice the number. What is the number?

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

Question 722531: Please help me solve these Equations.
1)Find the equation (in terms of x) of the line through the points (-5,3) and (5,-2)
2)Find the equation of the line passing through the points (6,4) and (-18,-40). Write your answer in the form y = m x + b.
3)Find the equation of the line with Slope = 8 and passing through (5,42). Write your equation in the form y=mx+b.

Click here to see answer by mananth(16946) About Me 

Question 722543: how would I Find the equation (in terms of x) of the line through the points
(-4,-4) and (2,5)

Click here to see answer by god2012(113) About Me 

Question 722797: 1(less than or equal to) 3/2z-2 (less than or equal to) 4
It says to solve the given inequality for the given variable.Simplify your
solution, and give your answer in algebraic notation. I have been stuck on this
one for 2 days. Please help!!

Click here to see answer by ankor@dixie-net.com(22740) About Me 

Question 722817: 1 (less than or equal to) 3/2z-2 (less than or equal to) 4
It says to solve the given inequality for the given variable.Simplify your
solution, and give your answer in algebraic notation. I have been stuck on this
one for 2 days. I need help.

Click here to see answer by solver91311(24713) About Me 

Question 722824: what is the shape of the graph of y=x?
there is a line on each side of the x but no symbol on the keyboard to put them in the question

Click here to see answer by solver91311(24713) About Me 

Question 722860: find the slope of the passing through the giving pair od points. (-1/5,5) and (1,-6)
Click here to see answer by solver91311(24713) About Me 
Question 722860: find the slope of the passing through the giving pair od points. (-1/5,5) and (1,-6)
Click here to see answer by 119078(26) About Me 

Question 722882: find the slope of the line through each pair of points (1,14) (-16,10)
Click here to see answer by Alan3354(69443) About Me 

Question 722811: Find the slope-intercept form for the line satisfying the following condition. x-intercept 2, y-intercept 1/5 The slope intercept form for the line is_____.

Click here to see answer by KMST(5328) About Me 

Question 723064: Please solve this word problem ; The middle digit of a three digit number is zero. The number is 34 times the sum of its digit. The new number obtained by interchanging the digit in the unit's and the hundered's place is more than the original number by 396. Find the original number.
Click here to see answer by lwsshak3(11628) About Me 
Question 723064: Please solve this word problem ; The middle digit of a three digit number is zero. The number is 34 times the sum of its digit. The new number obtained by interchanging the digit in the unit's and the hundered's place is more than the original number by 396. Find the original number.
Click here to see answer by josgarithmetic(39617) About Me 

Question 723138: Find if .

A 29
B 114
C 89
D 119

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

Question 723257: given that y=xsqt-2 and x=-3 explain how to get the answer

Click here to see answer by checkley79(3341) About Me 

Question 723416: Suppose the value of a car depreciates linearly for 15 years after it is bought. Also, suppose the value of the new car is $25,000 and the value 10 years after it is bought is $9,000. Let y be the value of the car x years after it is bought. Find a linear equation relating x and y. Write in y = mx + b form. I came up with y=1,600 + 23,400. I don't feel this is correct???
Click here to see answer by stanbon(75887) About Me 

Question 723446: The equation of line r is y-2=1/10(x+9). line "s" is parallel to line "r" and passes through (10,1) What is the equation of line "s"?

Write the equation in slope-intercept form. Write the numbers in the equation as proper fractions, improper fractions, or integers.

Click here to see answer by mananth(16946) About Me 

Question 723532: x+5y=29
4x+1oy=66

Click here to see answer by checkley79(3341) About Me 

Question 723658: How can I solve the linear equation -q/3+10=0



Click here to see answer by checkley79(3341) About Me 

Question 723687: One of the problems i am stuck on: Complete the following table and DO NOT GRAPH
I have been stuck on solving for y when x=0. i think i am doing it right but would greatly appreciate if someone double checked my work, this is what i got when i completed my table: x=0,1,-2,-5,-6.5,1 y=-2.66,4,0,-4,-6,4 not sure why the decimal on only one point
x=(3/4)y-2 (x equals three fourths y minus 2)
x = 0,?,?,-5,?,1
y = ?,4,0,?,-6,?



Click here to see answer by solver91311(24713) About Me 

Question 723638: Please help me solve Find an equation for given points: (-5,7) (-3,-5)
Click here to see answer by josmiceli(19441) About Me 

Question 723860: Given that a line passes through the following points, write the equation for the line in point slope form and tell me what the slope and y-intercept and x-intercept would be.
Points: (2,0) and (0, -1)

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

Question 723995: 6(x-1)/7=2(x+4)/8
Click here to see answer by MathLover1(20849) About Me 

Question 724136: How to solve a linear equation using the substitution method? Just need an example, I have tried other ways, and have not been able to come up with the correct answer.
Click here to see answer by mananth(16946) About Me 

Question 724198: Tshirts cost $10 shorts cost $15. If you have $90 to buy a total of 8 shirts and shorts how many of each can u buy?
Click here to see answer by checkley79(3341) About Me 

Question 724251: Shade the solution set to the system of inequalities
x + 3y > -2
2x + y less than or equal to 2

Click here to see answer by KMST(5328) About Me 

Question 724490: Please put this equation into a linear graph:
Y = 2x + 0.5
Thank you in advance for your help!!
Pam

Click here to see answer by mananth(16946) About Me 

Question 724632: I cannot figure this out....write an equation of the line containing the given point and perpendicular to the given line solve for (-3,-5); 5x+2y=4
Click here to see answer by stanbon(75887) About Me 

Question 724657: A line passes through the point (2,3) and has a slope of -8 . Write an equation for this line.
Click here to see answer by solver91311(24713) About Me 
Question 724657: A line passes through the point (2,3) and has a slope of -8 . Write an equation for this line.
Click here to see answer by stanbon(75887) 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