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

Tutors Answer Your Questions about Linear-equations (FREE)

Question 769292: Which of the following ordered pairs is a solution to this system of linear equation?
y= -3x + 5
y= 3x - 1
A. 1, 2
B. 2, -1
C. 3, 8
D. 4, -7
Click here to see answer by MathLover1(20849)

Question 769359: According to the book I am using, this problem is a linear equation:
x/(a-1)= ax+3, solve for x
It's been a few years since I've worked on algebra, so I'm under the impression I am forgetting important steps.
Click here to see answer by josgarithmetic(39617)

Question 769402: a total of 324 coins of 20 paise and 25 paise make a sum of Rs 71, then the number of 25 paise coins is.........
Click here to see answer by ramkikk66(644)

Question 769433: the solution to 2x+8>10 is x<1 yes or no?
Click here to see answer by fcabanski(1391)

Question 769471: 7 over 2 x + 1 over 2 x = 3x + 3 over 2 + 5 over 2 x
Click here to see answer by tommyt3rd(5050)

Question 769553: How do you graph x=2?
Click here to see answer by Edwin McCravy(20054)

Question 769554: Find the Slope. (reduce all fractions and no decimals)
(-3, 2) (1, -9)
m=
Click here to see answer by solver91311(24713)

Question 769541: Write the equation in slope intercept form of the line that has a slop of -2 and y intercept of 2
Click here to see answer by mananth(16946)

Question 769779: Write an equation, in slop-intercept form if possible, of the line through the pair of points.
(-7,6) and (0,4)
Can you also show your work on how to solve this as well? I'm lost.
Thanks!
Click here to see answer by oscargut(2103)

Question 769807: y = -1/2x + 1; (4, 2) how do i solve for the parallel for (4,2)
Click here to see answer by oscargut(2103)

Question 769817: topic about cartesian
Click here to see answer by Alan3354(69443)

Question 769836: Write the equation of a line perpendicular to the given line but passing through the given point.
y= 2x -1
pass through points are 2 and -2
Also simplify equations into slope intercept form
Click here to see answer by mananth(16946)

Question 769776: Write an equation, in slope-intercept form if possible, of the line through the pair of points.
(-7,6) and (0,4)
Can you also show your work on how to solve this as well? I'm lost.
Thanks!
Click here to see answer by josmiceli(19441)

Question 769835: Write the equation of a line parallel to the given line but passing through the given point.
y= -1/3x -4
pass through points are -6 and -3
Click here to see answer by Cromlix(4381)

Question 769935: A printer charges $1.80 for binding plus 5 cents per page for each copy of a community group's annual report.
Write the cost equation and answer the following questions.
What is the fixed cost? $1.80
what is the variable cost? .05
Let y represent the cost of the annual report and x represent the number of pages. what is the cost equation? y=1.80 + .05x
What will it cost to produce a 25 page report? $3.05
If report cost 3.30, the report is __ pages.
This last question I am having difficulty on. I have all the others right. When I try to give an answer it tells me wrong and then tells me to substitute 3.30 with the cost and solve for the length. I tried viewing examples in my program and it doesn't explain how to do this part. I am at a loss any help would be appreciated.
Thank you so much,
Dana
Click here to see answer by ramkikk66(644)

Question 769995: A line passes through the point (4,5) and has a slope of 2 . Write an equation for this line.

Click here to see answer by kmadison(20)

Question 770056: 9x+5y=18 find slope
Click here to see answer by mananth(16946)

Question 770161: Which equation represents the line that goes through (4, -1) and is parallel to the line x+2y=4?
Click here to see answer by Tatiana_Stebko(1539)

Question 770160: In a certain year, the amount of A garbage in pounds produced after t day by an average household is given by A=1.5t.
It wants me to graph graph equation for t is greater than 0. (dont have greater than sign on computer)
Then it wants me to tell them how many days it will take to get 100 pounds of garbage.
Click here to see answer by jim_thompson5910(35256)

Question 770192: Solve by graphing: y = 3x
y = -x+4
Click here to see answer by tommyt3rd(5050)

Question 770222: graph the linear equation f(x)=2/5x-4
Click here to see answer by jim_thompson5910(35256)

Question 770347:
Identify the slope and y-intercept of the graph of the equation. Then graph the equation.
y = -5/4x + 1

A. slope: -5/4; y-intercept: �1

B. slope: -4/5; y-intercept: 1

C. slope: -5/4; y-intercept: 1

D. slope: -4/5; y-intercept: �1

Click here to see answer by ramkikk66(644)

Question 770349: y=-2

Click here to see answer by ramkikk66(644)

Question 770352: How do I complete a table for a given equation, such as y=12x

Click here to see answer by Alan3354(69443)

Question 770351: y = -2
Click here to see answer by tommyt3rd(5050)

Question 770346: Graph the inequality on a coordinate plane.
-y < 3x -5

A. sorry these are pics of graphs and I can't figure how to submit them.

B.

C.

D.

Click here to see answer by Edwin McCravy(20054)

Question 770345: Solve the system of equations by graphing.
-1/3x + y = �1
y = 4 + 1/3x

Click here to see answer by oscargut(2103)

Question 770344: Write a rule for the linear function in the table.
x f(x)
�3 �1
0 2
3 5
6 8

A. f(x) = x + 2

B. f(x) = 3x

C. f(x) = x � 2

D. f(x) = x � 1

Click here to see answer by oscargut(2103)

Question 770394: Use the discriminant to determine whether the following equation has solutions that are: two different rational solutions, two different irrational solutions, exactly one rational solution, or two different non-real solutions (containing imaginary numbers). f(x)=4x^2+3x=10 answer is either

two different rational solutions

Two different irrational solutions

Exactly one rational solution

Two different non-real solutions

Click here to see answer by Alan3354(69443)

Question 770393: Find the expression of a polynomial function of degree 3 with the following characteristics: zeros:3,i,-i, goes through point (1,-4) please help
Click here to see answer by tommyt3rd(5050)

Question 770398: if f(x)=x^2-15 and g(x)=3-x then (f o g)(x) is? Please help
Click here to see answer by tommyt3rd(5050)

Question 770508: Find the value of k so that the lines 2x � 3y = 9 and kx-9y =18 will be parallel.
Click here to see answer by stanbon(75887)

Question 769989: ; solution
Click here to see answer by Jc0110(165)

Question 770557: what is the slope of y=x-2/6
Click here to see answer by oscargut(2103)

Question 769745: through (5,-3), parallel to
Click here to see answer by Jc0110(165)

Question 770605: v=pier^2h;for h
Click here to see answer by Alan3354(69443)

Question 770723: 3q - 2p= -8; (1,-2)
Click here to see answer by stanbon(75887)

Question 770728: (4,2),x=1
Click here to see answer by oscargut(2103)

Question 770725: 7x=5y
Click here to see answer by oscargut(2103)

Question 768988: Find the value of k if the slope of the equation (k+1)x + 2y = 6 is k-2
Click here to see answer by Jc0110(165)

Question 770769: Find the slope that passes through x-intercept 6 and y-intercept -7.
Click here to see answer by Jc0110(165)

Question 770807: find the slope of line with points (1,) and (0,4)

Click here to see answer by jim_thompson5910(35256)

Question 770861: 2a+3b=7
5a-4b=6

Click here to see answer by tommyt3rd(5050)

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