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

Tutors Answer Your Questions about Linear-equations (FREE)

Question 472918: 3/4x=-9
How do I solve for X?
Click here to see answer by rfer(12730)

Question 472919: y=3x/2+16/3
Click here to see answer by Alan3354(31519)

Question 472948: 2x-3(x-14)=-5
i need help with an explanation
Click here to see answer by rfer(12730)

Question 472949: How do I graph f(x)=-7/4x-3? Thank you.
Click here to see answer by stanbon(57967)

Question 472967: x^2 -81
_______
x +9
Click here to see answer by jim_thompson5910(28715)

Question 472966: Calculate the distance from the point K(-10, -13) to the line 8x – 5y + 15 = 0. Explain the answer in terms of the relationship between the point and the line
Click here to see answer by josmiceli(9817)

Question 473032: I bought a USB modem on Qtel. Which costs 1,200 QR. To be paid the down payment for 700 QR and I need to pay 100 QR per month . What will be the linear equation that will represent the situation.
Can u give me a soultion for this.? Thanks in advance.:D Reply ASAP
Click here to see answer by Tatiana_Stebko(1326)

Question 473063: I bought a yacht for QR 500,000 including the interest to be paid in 5 years. I pay the down payment of QR 200,000 and I need to pay QR 15,000 per month. What will be the linear equation that will represent the situation.
Pleaseeee reply asap.
Click here to see answer by Theo(3504)

Question 473190: The equation h=-16t^-64t+250 (i used the symbol ^ to represent t squared) gives the height of a ball, thrown
downward from the top of a 250-ft building with an initial velocity of 64 ft/s.
Find the time it takes for the ball to reach a height of 100 ft. Round your answer
to the nearest thousandth.
Thank you in advance for your hardwork.

Click here to see answer by Alan3354(31519)

Question 473266: Find an equation of the line containing the given pair of points (-3,-4) and (-8,-1) the equation of hte line in slope-intercept form=
y=
I get so far on the equation and then get lost somehow at the end I cannot get it right!! Please help :)
Click here to see answer by stanbon(57967)

Question 473299: the total of two numbers is 35. Four times the larger number is 4 less than 5 times the smaller number. Find the two numbers
Click here to see answer by edjones(7569)

Question 473343: Example: Find the point of intersection of the following lines.
x= 32 + y
3x= 8y+ 6
Click here to see answer by MathLover1(6812)

Question 473548: how do i find the x- and y- intercept of the equation y=-(2/3) x-2
Click here to see answer by Theo(3504)

Question 473554: what is the solution set to 4x + 5 = 2x + 33
Click here to see answer by jim_thompson5910(28715)

Question 473549: y=-2x-2-2? in equation of line in point-slope form
Click here to see answer by jim_thompson5910(28715)

Question 473559: solve system linear equations by addition method
4x-3y=1
8x+5y=13
please solve and show work...thanks
Click here to see answer by jorel1380(2518)

Question 473559: solve system linear equations by addition method
4x-3y=1
8x+5y=13
please solve and show work...thanks
Click here to see answer by oberobic(2304)

Question 473562: Write a slope-intercept equation for a line that passes through (3,-9) and (-1,3).
Click here to see answer by jim_thompson5910(28715)

Question 473723: I am trying to solve the problem h(x) = x+17 when h equals h(y+9). So far I have solved for the equation using h(0), h(-1), H(-11), etc. but am struggling with how to solve when a y is involved. Do I solve for y first?
Click here to see answer by Theo(3504)

Question 473907: Identify the slope line as positive or negative
y=-3x

Click here to see answer by jim_thompson5910(28715)

Question 474135: how do I solve
m = -5/7,(4,2)
Click here to see answer by nerdybill(7003)

Question 474227: write the equation of the line passing through (5,8) and the parallel to 8x-9y=10
Click here to see answer by MathLover1(6812)

Question 474251: I need help with labeling each axis of coordinate plane, x intercept, y intercept and vertex

Click here to see answer by rfer(12730)

Question 474254: I need help with labeling x and y intercepts and/or vertex and label each axis of coordinate plane

Click here to see answer by solver91311(17077)

Question 474306: How do I graph the regression equation y=0.15x-28
Click here to see answer by jorel1380(2518)

Question 474314: x+y=5
y-x=5
Solve the system by graphing?
Click here to see answer by jorel1380(2518)

Question 474335: Find the x- and y- intercepts for the equation. Show all of your work. Then graph the equation, -x + 2y = 4. Checking to see if I worked this problem correctly.
Click here to see answer by jorel1380(2518)

Question 474462: So how do i simplify (2xy^3)^4
Click here to see answer by stanbon(57967)

Question 474469: Find the slope if it exists of the line containing the pair of points (8,7) and (10,-10)
Click here to see answer by mananth(12270)

Question 474471: solve using the elimination method.
10x + 11y = -26.5
20x + 5y = -27.5
Click here to see answer by mananth(12270)

Question 474472: Solve using the substitution method.
-x - 3y = -20
5x + 3y = 40
Click here to see answer by mananth(12270)

Question 474547: Solve using the elimination method.
-5x - 7y = 25.5
-2x + 10y = -9
Click here to see answer by sofiyac(695)

Question 474509: I have a linear equation problem that I don't understand like y=2x-5 to find the y coordinates of the points (-2),(4), and (-1) How do I solve this one step by step.

I have another one like 2x + y = -6 how do I solve this one too. Step by step
Click here to see answer by sofiyac(695)

Question 474632: I need help setting up this equation if someone wouldn't mind. Thank you in advance for your help.
To buy a new car and a new house, Tina sought two loans totalling $321,929. The simple interest rate on the first loan was 1.0%, while the simple interest rate on the second loan was 8.8%. At the end of the first year, Tina paid a combined payment of $25,677.83. What were the amounts of the two loans?
Click here to see answer by ankor@dixie-net.com(15746)

Question 474674: 1)State the equation of a line that goes through (2,7) and is parallel to the x axis
Click here to see answer by stanbon(57967)

Question 474658: What is the slope and y-intercept of y=5x-4
Click here to see answer by MathLover1(6812)

Question 474888: 6x+5y= - 5
Click here to see answer by unlockmath(1614)

Question 474953: I need your help
Solution A is 30% acid and solution B is 60% acid. How many gallons of each solution must be used to create a 60 gallons miture that is 50% acid?
Thanks
Click here to see answer by nerdybill(7003)

Question 474952: What is the equation of a line that passes through (7, -2) and has a slope of 3?
Click here to see answer by nerdybill(7003)

Question 474949: Hi, please help me with this:
When an airplane flies with a given wind, it can travel 3,000 kilometer in 5 hours. When the same airplane flies in the opposite directions against the wind, it takes 10 hours to fly the same distance. Find the speed of the plane in still air and the speed of the wind.
Hint: let x = be the speed of the wind still air y = the speed of the wind
Click here to see answer by mananth(12270)

Question 474954: Identify the number of solutions for the systems of equations below.
2x – y = 7
2y = 4x + 16

Click here to see answer by ewatrrr(10682)

Question 474946: Identify the slope-intercept form of the equation of a line which contains the points (–2, –1) and (3, 4).
Dont stand the formula. Just need some practice. But I wanna see the steps you use. Thanks
Click here to see answer by ewatrrr(10682)

Question 474647: how to I solove and graph the equation 7x=4y-28
Click here to see answer by ewatrrr(10682)

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