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

Tutors Answer Your Questions about Linear-equations (FREE)

Question 164940: 5. Fill in the chart given this linear equation:
2x + y = 42.
Type all your work below the chart.
x y
-2
-1
0
1
2

Click here to see answer by elima(1433)

Question 165073: find the measure of an angle whose supplement measures four times it's measure
Click here to see answer by nerdybill(6951)

Question 165074: r=2n+2w solve for n
Click here to see answer by nerdybill(6951)

Question 165106: show me how to find the answer. I am new at this.
Click here to see answer by midwood_trail(310)

Question 165220: Find the equation of the line perpendicular to 3x – 4y = 9 and passing through (-2, -1). Write the equation in standard form, with all integer coefficients
Click here to see answer by Mathtut(3670)

Question 165284: If(-7,-3) is the midpoint of segment QP and the coordinates of Q are (6,-3) find the coordinates of P.
Click here to see answer by checkley77(12569)

Question 165283: If(-7,-3) is the midpoint of segment QP and the coordinates of Q are (6,-3) find the coordinates of P.
Click here to see answer by checkley77(12569)

Question 165347: Please help me solve this problem. I would appreciate step by step so that it can help me with other exercises.
-6x+2x+6+5x=/0-9/-/-6+5/
Click here to see answer by gonzo(654)

Question 165623: Write a function rule to describe the situation. The number of pounds p(z) as a function of the number of ounces z.
Click here to see answer by oscargut(891)

Question 163975: the distance traveled at a constant speed directly proportional to the time of travel. if olivia traveled 112 moles in 3.5 hours how many miles will olivia travel in 8.9 hours at the same constant speed.
Click here to see answer by Alan3354(30993)

Question 165663: I am trying to find the order pair for the solution:3x-2y=-11
Click here to see answer by stanbon(57282)

Question 165687: linear equation x = -1 graphs as a horizontal/vertical/diagonal line choose the best answer
How do I do this?
Click here to see answer by gonzo(654)

Question 165724: Graph this linear equation: y = -3 + 0.25
Click here to see answer by checkley77(12569)

Question 165812: Your friend's mother plans to open a restraunt. The initial investment is $90,000. Weekly expenses will be about $8200. If the weekly income is about 8900, in how many weeks will she get back her investement?
Click here to see answer by Mathtut(3670)

Question 165883: can somoene please help:
Find the appropriate linear cost or revenue function.
An electrician charges a fee fo $60 plus $45 per hour. Let C(x) be the cost in dollars of using the electrician for x hours. Find the linear cost funtion.
a. C(x) = 45x - 60
b. C(x) = 45x + 60
c. C(x) = 60x + 45
d. C(x) = 60x - 45
Click here to see answer by tutorcecilia(2152)

Question 165921: What is the slope and y-intercept of the equation: y - d = cx
Click here to see answer by oscargut(891)

Question 163682: Solve the folllowing system of linear equations
x-4y+2z=-1
2x+y-3z=10
-3x+12y-6z=3
Click here to see answer by Alan3354(30993)

Question 166003: Elementary and Intermediate Algebra, 3eElementary and Intermediate Algebra, 3e ISBN: 9780073533490 Author: Mark Dugopolski Citation Generator
copyright © 2009 The McGraw-Hill Companies
Page 220 number 56
Find the equation of each line. Write each answer in slope-intercept form
The line is parallel to -3x+2y=9 and contains the point (-2,1)

Click here to see answer by Mathtut(3670)

Question 165998: Elementary and Intermediate Algebra, 3eElementary and Intermediate Algebra, 3e ISBN: 9780073533490 Author: Mark Dugopolski Citation Generator
copyright © 2009 The McGraw-Hill Companies
Page 251 number 25
Solve each problem
The price P for a watermelon varies directly with its weight w
A. Write a formula for this variation
B. If the price of a 30-pound watermelon is $4.20, then what is the price of a 20-pound watermelon.
Click here to see answer by checkley77(12569)

Question 166044: GRAPH LINEAR EQUATIONS:
2X+Y=2
3X+2y=6
3x+2y=0
y+2=0
Click here to see answer by 163130(1)

Question 166063: can someone please help:
Write a cost function for the problem. Assume that the relationship is linear.
Marginal cost,$40; 70 items cost $3800 to produce
a. C(x) = 14x + 3800
b. C(x) = 40x + 1000
c. C(x) = 40x + 3800
d. C(x) = 14x + 1000
Click here to see answer by midwood_trail(310)

Question 165997: Elementary and Intermediate Algebra, 3eElementary and Intermediate Algebra, 3e ISBN: 9780073533490 Author: Mark Dugopolski Citation Generator
copyright © 2009 The McGraw-Hill Companies
Page 251 number 19
Sketch the graph of each equation
Y>3x-5
Click here to see answer by elima(1433)

Question 166092: My book isn't explaining this very well. Can you help?
I'm to solve each system by elimination.
2(a+b)=94
4(a-9)=3b-23
Click here to see answer by checkley77(12569)

Question 166092: My book isn't explaining this very well. Can you help?
I'm to solve each system by elimination.
2(a+b)=94
4(a-9)=3b-23
Click here to see answer by Mathtut(3670)

Question 166052: GRAPH LINEAR EQUATIONS:GIVE X-AND Y-INTERCEPTS
2X+Y=2
3X+2y=6
3x+2y=0

Click here to see answer by checkley77(12569)

Question 166081: graph each inequality.. 2x+y>3
Click here to see answer by checkley77(12569)

Question 166046: Find the slope of each line:
1.through (2,5) and (7,5)
2.2x-5y=4
3.through (5,1) and (7,2)
4.x-2=0
5. A line parrallel to 3x-2y=5
Click here to see answer by Mathtut(3670)

Question 166163: What is the x- and y-intercepts of this equation:
4x + 12y = -18
Click here to see answer by jojo14344(1512)

Question 166163: What is the x- and y-intercepts of this equation:
4x + 12y = -18
Click here to see answer by stanbon(57282)

Question 166159: How do you write this equation in standard form using integers:
y = -3/4x - 4
Click here to see answer by jojo14344(1512)

Question 166157: How do you write this equation in standard form using integers:
y = 7/2x + 1/4
Click here to see answer by jojo14344(1512)

Question 166157: How do you write this equation in standard form using integers:
y = 7/2x + 1/4
Click here to see answer by ankor@dixie-net.com(15645)

Question 166156: How do you write this equation in standard form using integers:
y = -3/4x - 4

Click here to see answer by jojo14344(1512)

Question 166244: I am trying to help out my cousin - if the question is 3X+10=20 what is X?
Click here to see answer by Mathtut(3670)

Question 166259: The national cost C in billions of dollars for dental services can be modeled by the linear equation
C = 2.85n + 30.52,
where n is the number of years since 1990
(Health Care Financing Administration, www.hcfa.gov).
a) Find and interpret the C-intercept for the line.
b) Find and interpret the n-intercept for the line.
c) Graph the line for n ranging from 0 through 20.
If I am not mistaken, are the steps solving for C, and then solving for N ? I am still a bit unclear on how to complete the problem
Click here to see answer by stanbon(57282)

Question 166260: Helen’s Health Foods usually sells 400 cans of ProPac Muscle Punch per week when the price is $5 per can. After experimenting with prices for some time, Helen has determined that the weekly demand can be found using the equation
d = 600 – 40 p
where d is the number of cans and p is the price per can.
a.) Will Helen sell more or less Muscle Punch if she raises her price from $5.00?
b.) What happens to her sales every time she raises her price by $1.00?
c.) Graph the equation.
Click here to see answer by Mathtut(3670)

Question 166158: How do you write this equation in standard form using integers:
y = -3x
Click here to see answer by Fombitz(13828)

Question 166327: find an equation of the line containing (-2,3) and perpendicular to the line 2x+y=6
Click here to see answer by elima(1433)

Question 166489: log (x-3)+ log(x) = 1 and log2 (x2-6x)=3+log2(1-x)
Click here to see answer by nerdybill(6951)

Question 166494: x is greater than or equal to -1 can you please help me solve this equation?

Click here to see answer by stanbon(57282)

Question 166639: I need help on solving some questions. 2y=-5x.
Thanks,
Lee
Click here to see answer by jim_thompson5910(28536)

Question 166654: write an equation of the line that passes thru the given point and is parallel to given line. write in slope intercept form.
(0,6), 3y-12x=7
Click here to see answer by jim_thompson5910(28536)

Question 166655: Write the equation in general form of the line passing thru the pints A (1/2, 3) and B (-1/2,-2).

Click here to see answer by jim_thompson5910(28536)

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