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

Tutors Answer Your Questions about Linear-equations (FREE)

Question 676771: 18x -.5y and y = 8
Click here to see answer by ReadingBoosters(3246)

Question 671915: Can someone help me graph this equation.. 3x-4y>12
Click here to see answer by Alan3354(69443)

Question 672843: 1.) Has the same slope as y = -5x + 10 and the same y-intercept as y = 3x - 9

2.) Is perpendicular to the line y = -4/3x and contains the point (4,10)

3.) Passes through (5,3) and crosses the x-axis at 9.
Click here to see answer by ReadingBoosters(3246)

Question 672976: X = 8 � y
X________Y
0__________
6__________
8___________
Complete the ordered pairs so that each is a solution of the given linear equation

Click here to see answer by ReadingBoosters(3246)

Question 673978: Please help me with by solving these systems algebraically they are all 2 variable questions. Thank you
1.){4x+2y=7
y=5x
2.)3c+2d=2
d=4
3.)x+12y=68
x=8y-12
4.)4p+2q=8
q=2p+1
5.)x+3y=7
2x-4y=24

Click here to see answer by ReadingBoosters(3246)

Question 674100: Write an equation of the line given the following.
Point slope: y-y1=m(x-x1) Slope Intercept: y=mx+b
through (5,-8), m=0
I got y= -8, because when you distribute x1, the slope would be just zero.
but I don't know if I'm supposed to use the method; leave, change, change.
for y-(-8)
Help, please?
Click here to see answer by ReadingBoosters(3246)

Question 672996: Find the slope if it exists of the line containing the points (3,-7) and (3,-9)
m=Type and integer or a fraction.
Click here to see answer by ReadingBoosters(3246)

Question 673023: Write an equation in standard form with integer coefficients for the line going through the points (2,3) (4,5)
What is the equation of the line
Click here to see answer by ReadingBoosters(3246)

Question 677016: Desmong wants to take guitar lessons. The one-time registration fee is $60, and each lesson costs $40. Which of the following inequalities can Desmond use to determine x, the number of lessons he can take if he wants to spend no more than c dollars?
a. 60x + 40x < c
b. 60 + 40x < c
c. 60x + 40x > c
d. 60 + 40x > c
Click here to see answer by ReadingBoosters(3246)

Question 670952: through(1,5); parallel to y=3x-4
Click here to see answer by ReadingBoosters(3246)

Question 677070: Write the equation of the line with slope �6 and y-intercept (0, 9)
Click here to see answer by MathLover1(20849)

Question 677071: 6n=8(3n+7)

Click here to see answer by MathLover1(20849)

Question 677068: Find the y-intercept of the line represented by the following equation: �7x � y = �7
Click here to see answer by lynnlo(4176)

Question 677090: A copier was purchased by a company for $9,500. After 2 years it is estimated that the value of the copier will be $8,300. If the value in dollars V and the time the copier has been in use t are related by a linear equation, find the equation that relates V and t.
Click here to see answer by stanbon(75887)

Question 677031: People living in Fairbanks drink 3600 cups of hot chocolate per day when the temperature is 0 degrees celsius. For each rise of 1 degrees celsius, their consumption decreases by 30 cups per day.
a. What expression can be used to represent the number of cups of hot chocolate drunk per day as a function of degrees celsius?
b. How many cups would they drink at 5 degrees celsius?
c. How many cups would they drink at 25 degrees celsius?
d. Write an equation to determine the temperature if 3000 cups of hot chocolate were consumed in a day.
e. Solve the equation to find the temperature if 3000 cups of hot chocolate were consumed in a day.
f. Is this answer reasonable? Explain.
Click here to see answer by KMST(5328)

Question 677011: What is the Numeric Solution and Number Line Graphic Solution for the following problems:
1. 8x + 3 < 75
2. 3x + 4 < 2x -6
3. 10x - 7> 2x + 25
4. 14 - 2x - 4x > - 136
5. -11 - x - 2x > 88
Click here to see answer by jim_thompson5910(35256)

Question 677171: Solve by elimination method:
-2x+2y=-1
x-3y=-3
Click here to see answer by jim_thompson5910(35256)

Question 677165: y=f(x)is a linear equation. If f(1)=2 and f(3)=7, find the slope.
Click here to see answer by jim_thompson5910(35256)

Question 677088: Write the equation of the line with x-intercept (�4, 0) and undefined slope. Write your results in slope-intercept form, if possible.
Click here to see answer by ReadingBoosters(3246)

Question 677092: graph 3(x-y)+2x<3
Click here to see answer by ReadingBoosters(3246)

Question 677160: Hello, i'm not sure which category this should go in. I have a question of 'give the perimeter of this triangle in the form of no brackets, and brackets (different questions). The algebraic expression is t+2. How would you work this out?
Click here to see answer by MathLover1(20849)

Question 639500: Use graphical method for LPP
Minimize Z=15x1+20x2
Subject to following constrains :
x1+2x2>=10
2x1-3x2<=6
x1+x2>=6
x1>=0, x2>=0
Click here to see answer by aldo(1)

Question 677236: x+4y=-1
2x-4y=4

Click here to see answer by jim_thompson5910(35256)

Question 677238: Solve the following systems of linear equations by graphing
x+4y=-1
2X-4y=4
Click here to see answer by jim_thompson5910(35256)

Question 677248: 5c-4>8c+2

Click here to see answer by jim_thompson5910(35256)

Question 677535: A vertical line passes through the points (-2,6) and (k,9). solve for k
Click here to see answer by jim_thompson5910(35256)

Question 677737: A line has x-intercept a^2 and y-intercept ab (a and b are positive). Show that the equation of this line can be written as x/a + y/b = a
Click here to see answer by ewatrrr(24785)

Question 677813: identify the following functions and graph
x+2Y=1
Click here to see answer by checkley79(3341)

Question 677918: slope 3 point 2,8
Click here to see answer by madman1101(7)

Question 677971: Write the equation of line that is parallel to 6x+y=24. Explain your reasoning
Click here to see answer by stanbon(75887)

Question 677985: Find the standard form of the equation of the line that passes through the points (3,0) and (-1,4).
Click here to see answer by ReadingBoosters(3246)

Question 678023: Please help me solve this problem so I can explain it to my child y+6=x+4
Thanks in advance
Christine
L2XL@charter.net
Click here to see answer by ReadingBoosters(3246)

Question 678056: What is y-3=7(x-5) graphed

Click here to see answer by ReadingBoosters(3246)

Question 678070: I don't under stand how to do and solve multi step equations and solving one step equations???
Click here to see answer by ReadingBoosters(3246)

Question 678286: Please help me with the following equation:
4x/5 + 2/3 = 2x

Click here to see answer by jim_thompson5910(35256)

Question 678290: Please see if I did this correctly
3(4-y) = 5(y + 2)
12-3y = 5y + 10
12-3y-5y = 5y-5y+10
12+8y = 10
12-12+8y=10-12
8y/8 = -2/8

Y = -1/4

Click here to see answer by jim_thompson5910(35256)

Question 678289:
solve for x: -3(x+1) - x/2 +3/2 < 0
Click here to see answer by pmatei(79)

Question 678305: Graph the following system of equations. y=x+2 y=-x+2
Click here to see answer by jim_thompson5910(35256)

Question 678306: Through: (2,-5), parallel to y=4x-5
Click here to see answer by jim_thompson5910(35256)

Question 678287: Solve for the variable specified: v = 1wh; for w

Click here to see answer by jim_thompson5910(35256)

Question 678297: 2x-6y=5
x+y=2
solve the system of equations

Click here to see answer by jim_thompson5910(35256)

Question 678302: Solve the following system using substitution. x+3y=8 2x-y=2
Click here to see answer by jim_thompson5910(35256)

Question 678365: -7x+6y=-11
-5x-4y=17
Click here to see answer by jim_thompson5910(35256)

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