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 1169129: Can you please help me figure out what coordinates would be the solution to the problem?

2x-3y<9
-2x -2x
-3y/-3<-2x/-3+9/-3
y>2/3x-3
Would the coordinates be (6,-4), (-1,-9), (2,-5), or (-3,-3)

Click here to see answer by MathTherapy(10552) About Me 
Question 1169129: Can you please help me figure out what coordinates would be the solution to the problem?

2x-3y<9
-2x -2x
-3y/-3<-2x/-3+9/-3
y>2/3x-3
Would the coordinates be (6,-4), (-1,-9), (2,-5), or (-3,-3)

Click here to see answer by ikleyn(52781) About Me 

Question 1169175: -2x-y=-1 in slope intercept form
Click here to see answer by josgarithmetic(39617) About Me 

Question 1169287: A local dairy association enlists the help of a marketing research firm to predict the demand for milk. the research firm finds that the local demand for milk can be predicted by the equation q=-4000p+10000, where p represent the price per quart(in dollar) and q represent the number of quartz purchased per week.
1: graph the equation
2: identify the slope and q-intercept.
3: intercept the meaning of the slope and q-intercept.

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

Question 1169327: Find an equation of the line perpendicular to 3x-5y=40 passing though the point (9,-4)

Click here to see answer by ikleyn(52781) About Me 

Question 1169385: Two dogs, each traveling 10 ft/sec, run toward each other from 500 feet apart. As they run, a flea flies from the nose of one dog to the nose of the other at 25 ft/sec. The flea flies between the dogs in this manner until it is crushed when the dogs collide. How far did the flea fly?
Click here to see answer by ikleyn(52781) About Me 
Question 1169385: Two dogs, each traveling 10 ft/sec, run toward each other from 500 feet apart. As they run, a flea flies from the nose of one dog to the nose of the other at 25 ft/sec. The flea flies between the dogs in this manner until it is crushed when the dogs collide. How far did the flea fly?
Click here to see answer by Alan3354(69443) About Me 

Question 1169398: Rachel owns 4 fewer than twice as many pairs of shoes as her friend Nicole. If Rachel has 14 pairs, how many pairs of shoes does Nicole have?
2x-4=14
2x-4+4=14+4
2x=18
x=9

Click here to see answer by Solver92311(821) About Me 
Question 1169398: Rachel owns 4 fewer than twice as many pairs of shoes as her friend Nicole. If Rachel has 14 pairs, how many pairs of shoes does Nicole have?
2x-4=14
2x-4+4=14+4
2x=18
x=9

Click here to see answer by josgarithmetic(39617) About Me 
Question 1169398: Rachel owns 4 fewer than twice as many pairs of shoes as her friend Nicole. If Rachel has 14 pairs, how many pairs of shoes does Nicole have?
2x-4=14
2x-4+4=14+4
2x=18
x=9

Click here to see answer by ikleyn(52781) About Me 

Question 1169400: Hunter is fours years older than his sister Elizabeth. If the sum of their ages is 18, how old is Hunter?
n+4=18
n+4-4=18-4
n=14

Click here to see answer by The Troll Kid(22) About Me 

Question 1169361: An electrical company used the following method for computing consumers bill or monthly service charges dollar 5 for each consumer and in addition the company charges 0.095 per killo watt hour.if c is equals to monthly charges and k is equal to number of killo watt used.
(a) Determine function c which express monthly charges as a function of the number of killo watt per hour
(b) use function to determine monthly charges when consumer use 850 killo watt per hour
(c) find restricted domain and range
(d) compute bills for a customer who uses between 200 and 1500 killo watt per hour

Click here to see answer by The Troll Kid(22) About Me 

Question 1169449: my math teacher taught us how to do this but i don't understand (3,2), y = x + 5
Click here to see answer by josgarithmetic(39617) About Me 

Question 1169456: what is the slope in the equation y=2x+3
Click here to see answer by Alan3354(69443) About Me 
Question 1169456: what is the slope in the equation y=2x+3
Click here to see answer by MathTherapy(10552) About Me 

Question 1169473: What is
Determine whether each equation is a linear equation. Write yes or no. If yes, write the equation in standard form and determine the x- and y-intercepts.
5 - 2y = 3x

Click here to see answer by josgarithmetic(39617) About Me 
Question 1169473: What is
Determine whether each equation is a linear equation. Write yes or no. If yes, write the equation in standard form and determine the x- and y-intercepts.
5 - 2y = 3x

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

Question 1169520: which of the following equations describes the line (-2,4) (-4,-8) check all that apply
a.y-4=2(x+2)
b.y-8=6(x-4)
c.y+4=6(x-2)
d.y+8=6(x+4)
e.y+4=2(x-2)
f.y-4=6(x+2)

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

Question 1169536: Write the equation of the line in
slope-intercept form given:
the slope is undefined and it passes
through the point (1, -3)

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

Question 1169565: plot the graph y=5x-2 in the range x=-1 to x=4

Click here to see answer by Boreal(15235) About Me 

Question 1169651: The equation c=45+0.04m represents the total charges for renting a car driving m miles. If this was on a table what would it look like.
Click here to see answer by ikleyn(52781) About Me 
Question 1169651: The equation c=45+0.04m represents the total charges for renting a car driving m miles. If this was on a table what would it look like.
Click here to see answer by MathLover1(20849) About Me 

Question 1169649: Question 1: The amount of medication M (in milligrams) in a patient’s body gradually decreases over time t (in hours) according to the equation M=1200-15t.
After 73 hours, how many milligrams of medication are left in the body?
Question 2: A staircase is to be built so that its maximum steepness is 0.4. If each step goes in 29 centimetres, what is the maximum height in centimetres it can rise vertically?
Question 3: A line passing through the points (5,-2) and (-1,t) has a slope equal to 3.
Question 4: What is the slope of any line parallel to the x-axis?
Question 5: Find the equation of the line through (2,7) that is parallel to the y-axis.
Question 6: Write down the equation of the line in slope-intercept form, given that its slope is -5 and it's y-intercept it 3
Question 7: Write the equation of a line which has slope 2/3 and goes through the point (0,-2)
Question 8: Find the equation of a line that has the same slope as y=9-10x and the same y-intercept as y=-3x-5
Question 9: A line L is perpendicular to the interval joining B (3,9) and C (-1,8)
Question 10: Use the two point formula to derive the equation of the line that passes through the points A (-10,2) and B (10,-14). Give your answer in general form.

Click here to see answer by ikleyn(52781) About Me 

Question 1169669: Graph a line through (3, 4) and the origin

Click here to see answer by josgarithmetic(39617) About Me 
Question 1169669: Graph a line through (3, 4) and the origin

Click here to see answer by ikleyn(52781) About Me 

Question 1169688: A straight line passes through points (3,12) and (7,4). What is the equation of the line?
Click here to see answer by Boreal(15235) About Me 

Question 1169695: equation in slope-intercept form for the line with slope -2/3 and y-intercept 8
Click here to see answer by josgarithmetic(39617) About Me 
Question 1169695: equation in slope-intercept form for the line with slope -2/3 and y-intercept 8
Click here to see answer by Boreal(15235) About Me 

Question 1169707: what is the slope of the 2 points: 2,-2 and -3,-6
Click here to see answer by ikleyn(52781) About Me 

Question 1169708: what is the equation of the following points: 2,-2 and -3,-6
Click here to see answer by ikleyn(52781) About Me 

Question 1169727: how can you tell without graphing that there is one solution to the system...
Click here to see answer by Alan3354(69443) About Me 
Question 1169727: how can you tell without graphing that there is one solution to the system...
Click here to see answer by ikleyn(52781) About Me 

Question 1169743: the elevator of a building is 10 feet above ground level on the first floor. the buildings elevator rises at a rate of 5 feet per second. you enter the elevator on the first floor. let t represent the time in seconds you are in the elevator and h(t) represents the height of the elevator (in feet) at time t.
write an equation for h(t)
What will your height be in 12 seconds?

Click here to see answer by ikleyn(52781) About Me 

Question 1169778: Find the slope that passes through 1,-19 and -2,-7

Click here to see answer by Boreal(15235) About Me 

Question 1169799: How to sketch this graph f(x)=3x+2 and g(x)=-5x+2, they are in the same x axis,where to start, I don't even know plz help
Click here to see answer by Alan3354(69443) About Me 
Question 1169799: How to sketch this graph f(x)=3x+2 and g(x)=-5x+2, they are in the same x axis,where to start, I don't even know plz help
Click here to see answer by josgarithmetic(39617) About Me 

Question 1169813: A line passes through (-3, 9) and (4, 4). Another line passes through (9, -1) and (4, -8). Are the lines parallel or perpendicular?
Click here to see answer by josgarithmetic(39617) About Me 

Question 1169865: Which of the following is true about the relationship between the slopes of the lines whose equations are 8x - 9y = 5 and 9x - 8y = 1?
They are equal.
They are opposites.
They are reciprocals.

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

Question 1169890:
Click here to see answer by ikleyn(52781) About Me 

Question 1169975: How do I solve (r,-5),(3,13),m=8?
Click here to see answer by josgarithmetic(39617) About Me 
Question 1169975: How do I solve (r,-5),(3,13),m=8?
Click here to see answer by MathLover1(20849) About Me 

Question 1170009: Two numbers have a sum of 106. One number is 10 less than the other. Find the numbers
Click here to see answer by josgarithmetic(39617) About Me 

Question 1170106: Chelsea started with $30 and saved $30 per week. Use x for time and y for savings. Select the graph of Chelsea's equation.
Click here to see answer by josgarithmetic(39617) About Me 

Question 1170120: what is the equation of a line that passes through the point (-3,-11) and is parallel to the line whose equation is 2x-y=4

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

Question 1170172: Write an equation of the line with a slope of -7 and y-intercept of 1
Click here to see answer by josgarithmetic(39617) 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