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

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Question 810829: Would you please help me get the point of intersection for the following
3x+10y>30 and -5x-5y>25
Thank you so much.

Click here to see answer by Charles3475(23) About Me 

Question 810895: What is the equation for these (x, y) pairs?
(-4,4),(-2,2),(-1,1),(1,1),(3,3)

Click here to see answer by TimothyLamb(4379) About Me 

Question 810193: What is the slope of the line that passes through points (12,-8) and (6,-4)
Click here to see answer by TimothyLamb(4379) About Me 

Question 810976: If the equation of a line has a slope of 0 and passes through the point (3, 3), which form would be used to write the equation of the line?

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Question 809066: Find the equation of the line which passes through(1,2) an has an undefined gradient.
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Question 811141: (2x-1)(x+7) =0
Click here to see answer by Alan3354(69443) About Me 

Question 811161: How do you make a now next rule from this table
x-y
5-20
15-40
25-60
35-80

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

Question 811189: What is the equation parallel to the line 3x+2y=6

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Question 811166: What is the linear equation of the line that goes through (8,10) and (6,-10)
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Question 811510: 3x-7=6x+11
Click here to see answer by Simeonkay(7) About Me 

Question 811555: a newspaper charges a flat rate to place an ad in the classified section of the newspaper and then charges a per line fee for any additional lines. one person placed a 4-line ad for $17.10 and another person placed a 6-line ad for $22.50.
write an equation that gives the total cost as a function of the number of lines in the ad

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Question 811640: write a linear equation in slope intercept form to model the situation below. *clara has already written 10 pages of a novel. she plans to write 15 additional pages per month until she is finished.

Click here to see answer by TimothyLamb(4379) About Me 

Question 811668: 1. A horizontal line and a vertical line intersect at
(-2,9). Write the equation for each of these lines.



Horizontal line:__________

Vertical line:___________

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Question 811692: Using the addition method solve the equation
2x-7y=4
5x-5y=4

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

Question 811474: Find the equation of the line that passes through the point (-6, 7) and is parallel to the line 5x-3y=5. Write your answer in standard form and slope intercept form.
Click here to see answer by TimothyLamb(4379) About Me 

Question 811357: find an equation of the line through (1,8) and parallel to y=4x+2 write the equation using function notattion
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Question 811331: Use the slope- intercept form to graph the equation.
5y-35x=-35.

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Question 811329: Find an equation of the line through the given points. Write the equation in standard form: Through (-1,1) and (1,-13).
Click here to see answer by TimothyLamb(4379) About Me 

Question 811330: Determine the slope and the y-intercept of the graph of the equation.
-x+11y=33

Click here to see answer by TimothyLamb(4379) About Me 

Question 811815: Como resuelvo este sistema de ecuaciones utilizando el metodo de sustitucion?
2x+3y=7
x-4y=-2
Gracias!

Click here to see answer by TimothyLamb(4379) About Me 
Question 811815: Como resuelvo este sistema de ecuaciones utilizando el metodo de sustitucion?
2x+3y=7
x-4y=-2
Gracias!

Click here to see answer by richwmiller(17219) About Me 

Question 811814: Como resuelvo este sistema por eliminacion?
[ 2x-3y=-2 ]
[ 5x-2y=-5 ]
el corchete que aparece antes del #2 y del #5 no van dividos como los puse aqui, si no que es uno grande que cubre esos dos numeros. Gracias!

Click here to see answer by richwmiller(17219) About Me 
Question 811814: Como resuelvo este sistema por eliminacion?
[ 2x-3y=-2 ]
[ 5x-2y=-5 ]
el corchete que aparece antes del #2 y del #5 no van dividos como los puse aqui, si no que es uno grande que cubre esos dos numeros. Gracias!

Click here to see answer by TimothyLamb(4379) About Me 

Question 811818: Determina si el par ordenado es una solución del sistema de ecuaciones. Grafica ambas rectas en el sistema y gráfica el punto.
esto me menciona el ejercicio pero no lo comprendo?

el ejercicio A. (1,-2) {y=2x-4
{y=-x-1



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Question 811820: Determina si el par ORDENADO es Una Solución del Sistema de Ecuaciones. Grafica Ambas RECTAS en el Sistema y Gráfica el punto.
ESTO me menciona el Ejercicio Pero no lo Comprendo?
(3 , 1)
{y = 2/3 x 3
{y = 2/3x-2

Click here to see answer by richwmiller(17219) About Me 

Question 811839: como resolver este sistema de eliminacion
{2x-3y=-2
5x+2y=-5

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

Question 811965: What are the solutions to the nonlinear system of equations below
x^2+y^2=25
y^2/5^2 - x^2/5^2

Click here to see answer by richwmiller(17219) About Me 

Question 812229: What is the slope-intercept form of y=7/2
Click here to see answer by erica65404(394) About Me 

Question 811924: State the value of 'm' in each equation of the form y=mx.
1] y=7x
2] y=-x

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Question 812165: What is the value of y = 3x - 5 when x = -1,0,1 and how would the graph look
Click here to see answer by TimothyLamb(4379) About Me 

Question 812136: Find a equation of the line. Write the equation using function notation.
through(5,-3); perpendicular to 3y=x-6

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Question 812140: Please help me solve this equation using elimination: 3x+y=4 -6x-2y=12
Click here to see answer by TimothyLamb(4379) About Me 

Question 812364: Hello I am having trouble with my gaussian elimination homework.
It is not the Jordan Gauss as in the matrix you want to end with two zeros in one row and one zero in another. This is using three equations
The equation:
12x + 2y + 2z = 12
60x + 12y + 24z = 48
4x + y - z = -2
Please help ASAP it is due tomorrow

Click here to see answer by luke94(89) About Me 

Question 812249: Hello i would like to know how to find the answer to a problem to find if it has one solution many solutions or no solutions. The problem is 3x-6y=12 then 2x-4y=8 I know i have to find a b and m for these two problems. I just dont know how to do it. another problem is 2x+y=0 y=2x-4 thankyou
Click here to see answer by ankor@dixie-net.com(22740) About Me 

Question 812489: A line passes through the points (p, a) and (p, –a) where p and a are real numbers. What is the y-intercept? Explain your reasoning.

Click here to see answer by richwmiller(17219) About Me 

Question 812502: Find the slope, if possible, of the line passing through each pair of points. ( 2, - 1) and ( 6, 3)
Click here to see answer by richwmiller(17219) About Me 

Question 812529: how can i explain step by step and solve the equation 7x + 8 = 36?
Click here to see answer by TimothyLamb(4379) About Me 
Question 812529: how can i explain step by step and solve the equation 7x + 8 = 36?
Click here to see answer by solver91311(24713) About Me 

Question 812724: (8,5); m=1/4
Click here to see answer by erica65404(394) About Me 

Question 812694: how do you slove 2x+5<11
Click here to see answer by erica65404(394) About Me 

Question 812745: What is the maximum profit of:
P(x)=+396x-2.1x^2-4000
thank you.

Click here to see answer by richwmiller(17219) About Me 

Question 812816: For a linear function f, f(-1)=3 and f(2) = 4.
Find an equation for f.
Find f(3)

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Question 812863: Using the slope formula find the line that passes through the points of (0,1)(2,3)













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Question 812863: Using the slope formula find the line that passes through the points of (0,1)(2,3)













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Question 812865: find the slope of the line from this equation of 4x=2y-8



















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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, 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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, 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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