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

Tutors Answer Your Questions about Linear-equations (FREE)

Question 396271: Line two is perpendicular to the line 2x-4y=20. What is the slope of the line?
Click here to see answer by blwinbbbles(106)

Question 396330: write an equation in point-slope of the line through points (7,-4) and (8,1)
Click here to see answer by stanbon(75887)

Question 396335: which of the following is the equation of the line that has tha same slope as y=-3/2x +2 and the same y-intercept as y=3x-2?
a)y-2=-3/2x
b)-3/2 x=y+2
c)y+2=-3/2
D)-3/2x=y+3
Click here to see answer by stanbon(75887)

Question 396268: A line passes through the points (3,5) and (3,-4). Find an equation of the line.
* I found that the slope is -9/0 which is undefined. So would the equation of the line just be undefined?
Click here to see answer by blwinbbbles(106)

Question 396324: -2x+5y=12 for y
Click here to see answer by rfer(16322)

Question 396206: How do you find the value for k so that the line through (k,-10) and (5,-6) is parallel to y= -1/4x + 3
Click here to see answer by ankor@dixie-net.com(22740)

Question 396474: 2 men see each other at a doctor's office. One returns every 5 days and one returns every 6 days. When will they see each other again?
Click here to see answer by edjones(8007)

Question 396485: change y=x-3 so that the graph of the new equation has a steeper,negative slope and the same y-intercept.
Click here to see answer by richard1234(7193)

Question 396526: I have tried to solve this problem multiple times today. Don't know what I'm doing wrong.
2(5x+4)+3(2x+11)= 4x-19
Click here to see answer by richard1234(7193)

Question 396537: When five times a number is decreased by 4, the result is 26. What is the number?
I looked and the answer is 12, but I have set the problem up and can't get it to work out.
Click here to see answer by ankor@dixie-net.com(22740)

Question 396663: How do I find when an object hits the ground using the equation: -16t^2 +560t. I know how to find the height after however many seconds, but cannot figure out how to find this.
Click here to see answer by ewatrrr(24785)

Question 396682: are the following two graphs in a family? if explain why.
y=3x-2 and y=-2x+1
Click here to see answer by stanbon(75887)

Question 396689: determine the y-intercept of the graph: -3x-5y=15.
Click here to see answer by stanbon(75887)

Question 396697: write an equation in slope-intercept form of the line having the given slope and passing through the given point: m=-3, (4,-1)
Click here to see answer by ewatrrr(24785)

Question 396695: write an equation in slope-intercept form of the line having the given slope and passing through the given point: m=0,(0,-3)
Click here to see answer by MathLover1(20849)

Question 396694: write an equation in slope-intercept form of the line passing through each pair of points: (6,-2)and (3,-4)
Click here to see answer by MathLover1(20849)

Question 396690: determine the x-intercept of the graph: 2x+4y+=8
Click here to see answer by MathLover1(20849)

Question 396829: How do I graph 4x+y=-7
Click here to see answer by ewatrrr(24785)

Question 396939: Hey my name is Rosalyn Smith and i am in 9th grade at Salem Attence Center in Tylertown,MS and i am taken algebra and my teacher she moves to fast on some lessons our lesson that we are on now is Relating Graphs to Events and wwe need this lesson to take our state test.
Click here to see answer by Alan3354(69443)

Question 105198: Hello out there,I need some help with some tough problems,the first one is,Which of the following points are solutions to:2x-3y<0 and x+y>4 (2,3),(0,1)or(1,4).The next one is,Determine whether the system has one solution,no solution,or infinitely many solutions:y=2/3x and 2x-y=-4.The third one is,State whether the system is consistent and independent,consistent and dependent,or inconsistent:x+y=4 and 2x-y=-7.And the last one is,State whether the system is consistent and independent,consistent and dependent,or inconsistent:4x+2y=8 and 2x+y=1.Thanks to whoever can help.
Click here to see answer by babyb_(6)

Question 396991: find an equation of the line containing the points (-5,-2) and (-13,-7)

Click here to see answer by stanbon(75887)

Question 396994: The measure of an angle and its complement are in the ratio 4:11. what is the measure of the two angles? I tried 4x and 11x so far but lost my way of getting to the answer :(
Click here to see answer by stanbon(75887)

Question 397150: i am working on linear equations for my test tomorrow, but I am stumped on one problem right now with these points M (3,6) and N (-3,-4)...what is the answer to y=mx+b for this
Click here to see answer by jim_thompson5910(35256)

Question 397206: The line of which equation below is perpendicular to y=5/8x�2?
A) y=5/8x+5 B) y=-5/8x�2 C) y=-8/5x+5 D) y=8/5x�4

Click here to see answer by ewatrrr(24785)

Question 397205: The line of which equation below is parallel to the line y=5/8x�2?
A) y=5/8x+5 B) y=-5/8x�2 C) y=-8/5x+5 D) y=8/5x�4

Click here to see answer by ewatrrr(24785)

Question 397211: how would I solve x/2 + x/3= 3/4 I know the least common denominator is 12 but I am having trouble working the problem out.
Click here to see answer by ewatrrr(24785)

Question 397211: how would I solve x/2 + x/3= 3/4 I know the least common denominator is 12 but I am having trouble working the problem out.
Click here to see answer by mananth(16946)

Question 397212: the graph of the equation Ax+3y=-3 is a line that passes through (2,-5). what is the value of A?
Click here to see answer by ewatrrr(24785)

Question 397292: find the missing coordinate.
(-2,_) is a solution of -3x+y=8
Click here to see answer by Alan3354(69443)

Question 397296: find the missing coordinate.
(0,_) is a solution of x-2y=8
Click here to see answer by Alan3354(69443)

Question 397293: find the missing coordinate.
(_,-5) is a solution of x-y=0
Click here to see answer by Alan3354(69443)

Question 397345: I am trying to decide wether each pair of lines is Perpendicular, parallel, or neither. 2x-y=5, 2x+y=3
I have worked out:
2x-y=5
2x-y-5=5-5
2x-y-5=0
2x-y+y-5=0+y
2x-5=y
I plugged 2 in for x
2(2)-5=y
4-5=y
-1=y
2x+y=3
2x+3=y
Plugged in 2 for x again
2(2)+3=y
4+3=y
7=y
In my book it says that the answer is neither Perpendicular or parallel but I don't understand why that is. I thought if you were solving for y the coefficient of x is the slope so wouldn't the slope on both be 2?
Click here to see answer by ewatrrr(24785)

Question 397360: If the line
y=A+B(x-3)
is perpendicular to the line
y=2x
and
it contains the point
(5,15)
, what are the values of
A and B?

Click here to see answer by ewatrrr(24785)

Question 397360: If the line
y=A+B(x-3)
is perpendicular to the line
y=2x
and
it contains the point
(5,15)
, what are the values of
A and B?

Click here to see answer by lwsshak3(11628)

Question 397391: The Norman window with dimensions as shown is a rectangle topped by a semicircle. If the area of the window is 68.2 square feet, find its height h.
the drawing looks like a square with "6ft" at the bottom, at the top of the square is a half circle or dome divided like you would a piece of pie. Then next to the picture they have an arrow with "h ft" in the middle of the line going up and down from the top of the dome to the bottom of the square.
Please help me set up an equation & solve problem.
Click here to see answer by ankor@dixie-net.com(22740)

Question 397585: I'm having difficulty understanding how to write the equation of a line.
y= mx+ b
m=-4\5 b=12
Click here to see answer by solver91311(24713)

Question 397622: linear equation by graphing
x=y+4
2x-y=5
Click here to see answer by Fombitz(32388)

Question 397627: What is the equation of a line that is perpendicular to y=-4x-2 and passes through the point (-8,3)?
Click here to see answer by Fombitz(32388)

Question 397627: What is the equation of a line that is perpendicular to y=-4x-2 and passes through the point (-8,3)?
Click here to see answer by robertb(5830)

Question 397599: how do i find my equation of a line parallel to 2x-4y=20 that passes through (8,-3)
Click here to see answer by Fombitz(32388)

Question 397821: write a equation of a line through the given points

Click here to see answer by stanbon(75887)

Question 397840: Could you assist me with finding the slope and the y-intercept of the following:
6-1/5y=4x
Click here to see answer by stanbon(75887)

Question 397847: Find the slope and the y-intercept of the line. Write fractional answers in lowest terms.
5y+3x+2=19+3x
Click here to see answer by ewatrrr(24785)

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