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

Tutors Answer Your Questions about Linear-equations (FREE)

Question 102593: Given f(x)=-5x-1, find f(a-4).
Click here to see answer by edjones(7569)

Question 102642: Write an equation in the slope intercept form if possible: The line goes through the (1,4) and is parallel to 5 + 4y = 3x
Click here to see answer by jim_thompson5910(28476)

Question 102644: Can you help me find the slope of the line that passes through (7, -8) and is perpendicular to 3y = x = 6
PLEASE, and thanks to anyone who helps !
Click here to see answer by jim_thompson5910(28476)

Question 102645: Complete the ordered pair so that it satisfies the given equation. Match your results to the correct answer below:
2x-5y=-12 : (-1, ? )
a) (-1,0)
b) (-1,5)
c) (-1,2)
d) (-1,4)
Please help. Thank you so much.
Click here to see answer by jim_thompson5910(28476)

Question 102647: Graph the following linear equation:
y=-2x-1

Any help with this one would be great. Thank you so much.
Click here to see answer by jim_thompson5910(28476)

Question 102648: Find the x- and y- intercepts of 7x-2y=-5 and use them to graph the equation.
Please provide me with as many steps as possible. I am trying really hard to understand how to do these. Thank you.
Click here to see answer by jim_thompson5910(28476)

Question 102649: Find the slope of the line that contains the points (-4,-2) and (1,1) and find the correct answer below:
a) 5/3 b)3/5 c)1/3 d)-5/3
Thanks so much for any help with explaining this process.
Click here to see answer by jim_thompson5910(28476)

Question 102659: Which of the following equations represents a line l that goes through (12,-9) and has a slope of -1/3?
a) y=-1/3-5/3 b)y=-1/3x c)y=-1/3x-5 d)y=-1/3x+5

Thanks so much for any help provided.
Click here to see answer by jim_thompson5910(28476)

Question 102658: 1) Write the equation y=1/3x - 2 in standard form using only integers and a positive coefficient for x.
a) x+3y=6 b) x-3y=2 c)-x+3y=-6 d)x-3y=6

20 Which of the following equations represents a line l that goes through (-1,-3) and has a slope of 4?
a)y=4x-3 b)y=4x+1 c)y=4x-1 d)y=4x+3

Please, can anyone help me with the above? thank you so much.
Click here to see answer by jim_thompson5910(28476)

Question 102657: 1) Line l goes through (1,3) and is parallel to the line through (4,3) and (-3,1). Find the slope of l.
a) 7/2 b)3 c)2/7 d)Undefined

2)Line l goes through the point (5,-2) and is parpendicular to the line through (-2,1) and (-4,-2). Find the slope of l.
a) -2/3 b)-3/2 c)7/3 d)0

Any help anyone can provide with the above would great. I am trying to understand how to solves these. Thank you so much.
Click here to see answer by jim_thompson5910(28476)

Question 102678: I need some help with simplifying the following:
1/2y^2 + 6/8y^3
I come up with the following answer:
1/2y^2 + 3/256
Is this correct?
Click here to see answer by stanbon(57214)

Question 102018: Substitute the given values into the formula and solve for the unknown variable.
15) A = 1/2bh; b = 19, h = 3
Click here to see answer by JP(22)

Question 102750: Graph y=-2x+2
Click here to see answer by MathLover1(6612)

Question 102699: Graph the following:
y is greater or equal to 3x-2

Thank you for any help you can provide me with.
Click here to see answer by elima(1433)

Question 102815: Given an equation of a line in the Ax + By = C by solving for y, Use this information to find the slope of each line by inspection.
3x+5y = 9

Click here to see answer by jim_thompson5910(28476)

Question 102866: Find B so that -6x +By = 3 is perpendicular to 2x-3y=8.
I took simplified y=-2/3x - 8/3 and y=6x + 3/B.
any number for B must be positive in order for the lines to be perpendicular.
is this correct?
Click here to see answer by jim_thompson5910(28476)

Question 102872: What is the equation in slope intercept form for the line through each pair of points?
(-3,1) and (2,4)
I think the slope is 3/5... so I'm thinking it's y=3/5x + some number... but I'm having problems getting the rest. Help would be much appreciated.
Click here to see answer by edjones(7569)

Question 102805: I am having a dog of a time trying to solve these problems, please help me.
Write the equation of the line which passes through the point (2, 1) and is parallel to the line with equation y = 5/2x+6.
A line passing through (7, 17) and (5, y) is parallel to a line with slope 6. What is the value of y?
Find the slope of any line parallel to the line through points (9, 6) and (1, 2).
Find the slope of the line passing through the points (1, 2) and (3, 6).
please help me figure it out, thank you
Click here to see answer by scott8148(6628)

Question 102878: what is the slope of the line connecting the two points (-7,5) and (2,-3)

Click here to see answer by stanbon(57214)

Question 102878: what is the slope of the line connecting the two points (-7,5) and (2,-3)

Click here to see answer by bucky(2189)

Question 103020: Help me determine the value of r so that a line through the point has the given slope (2,r) (-3,5) slope -2/5.
Click here to see answer by stanbon(57214)

Question 103112: find the slope of the line passing through the points (-6,1) and (4,2).
Click here to see answer by jim_thompson5910(28476)

Question 103120: write an equation of the line that passes through the point (-5,5) with slope -2.
Click here to see answer by stanbon(57214)

Question 103115: Write an equation of the line that passes throught the point (-3,-5) with the slope -3.
Click here to see answer by edjones(7569)

Question 103152: How is the meeting point of two linear functions (equations) with differing slopes calculated.
Thanks.
Click here to see answer by Fombitz(13828)

Question 103038: Hello out there,I need some help with some problems,the first one is,Use elimination to solve:3x-y=15 and 5x+y=9.The next one is,Use elimination to solve:3x-2y=6 and x-2y=-2.The next one is,Use elimination to solve:x/2+2y=9 and 2x-y=18.And the last one is,Use elimination to solve:4x-y=-3 and 5x+2y=-20.Thanks to whoever can help.
Click here to see answer by MathLover1(6612)

Question 103169: 1/3s+7/9=4/3s
Use the appropriate property of equality to solve each equation
Click here to see answer by MathLover1(6612)

Question 103067: Complete the ordered pairs so that each is a solution for the given equation.
3x+4y=12
(0,?), (?,3/4),(?,0), (8/3,?)
Click here to see answer by Fombitz(13828)

Question 103262: Our teacher wanted us to graph this equation: y= -3/4x+3
And she wanted us to use a "T-Chart" and I know what that is, but the fraction gets me confused. This problem was from our daily warm-up not from any textbook.
Click here to see answer by stanbon(57214)

Question 103222: y=-4x+6
Click here to see answer by elima(1433)

Question 103298: Please help with the following...Thanks
Find the point-slope form of the line satisfying the given conditions and use this to write the slope-intercept form of the equation.
Passing through (-3, -4), (-4, -3)

Click here to see answer by checkley75(3666)

Question 103311: Find the point-slope form of the line satisfying the given conditions and use this to write the slope-intercept form of the equation.
Slope = -3/4 , passing through (-4, -6)

Click here to see answer by stanbon(57214)

Question 103310: Use the given conditions to write an equation for the line in slope-intercept form.
Passing through (5, 5) and perpendicular to the line whose equation is y = 8x + 9.

Click here to see answer by HyperBrain(694)

Question 103308: Use the given conditions to write an equation for the line in slope-intercept form.
Passing through (5, -3) and parallel to the line whose equation is y = -7x + 7.

Click here to see answer by HyperBrain(694)

Question 103371: determine the x-intercept for the line given by y=(2/3)x-6
Click here to see answer by checkley75(3666)

Question 103373: the graph of f(x)=-5 falls in what quadrant(s)?
Click here to see answer by checkley75(3666)

Question 103376: the postive y values of the graph y=-3-4x fall in which quadrant?
Click here to see answer by stanbon(57214)

Question 103377: find the slope and the y-intercept of -8x-5y=-10
Click here to see answer by edjones(7569)

Question 103386: What are the x-intercept and y-intercept of the line 4x - 5y =20?
Click here to see answer by edjones(7569)

Question 103383: What is the slope of the line passing through (-2,-3) and (2,-1)?

Click here to see answer by elima(1433)

Question 103396: solve the system of equation by graphing
x+y=11
x-y=7
Click here to see answer by Fombitz(13828)

Question 103402: Y varies directly as the cube of x. If y=1,000 when x=2, find y when x is 3.
Click here to see answer by Fombitz(13828)

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