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

Tutors Answer Your Questions about Linear-equations (FREE)

Question 147309: find the equation of the line with x intercept 2 and y intercept -3
Click here to see answer by nerdybill(7003)

Question 147310: find the equation of the line with y intercept 2 and slope -1/2
Click here to see answer by nerdybill(7003)

Question 147312: x+3y-24=0
change each equation to slope intercept form and state the slope and y intercept
Click here to see answer by nerdybill(7003)

Question 147319: find the equation of a line with y intercept 2 and point 4,4
Click here to see answer by nerdybill(7003)

Question 147320: change each equation to slope intercept form and state the slope and y intercept: 3x+y-2=0
Click here to see answer by jim_thompson5910(28715)

Question 147321: change each equation to slope intercept form and state the slope and y intercept: 6y-4x+8=0
Click here to see answer by jim_thompson5910(28715)

Question 147321: change each equation to slope intercept form and state the slope and y intercept: 6y-4x+8=0
Click here to see answer by vleith(2825)

Question 147311: find the equation of the line with y intercept 2 and point (4,4)
Click here to see answer by jim_thompson5910(28715)

Question 147345: change each equation to slope intercept form and state the slope and y intercept: 2x-3y+6=0
Click here to see answer by jim_thompson5910(28715)

Question 147343: change each equation to slope intercept form and state the slope and y intercept: 5x-4x+12=0
Click here to see answer by jim_thompson5910(28715)

Question 147342: change each equation to slope intercept form and state the slope and y intercept: 3x-2y-4=0
Click here to see answer by jim_thompson5910(28715)

Question 147344: change each equation to slope intercept form and state the slope and y intercept: 6x-4x+8=0
Click here to see answer by nerdybill(7003)

Question 147376: Write the two equations in slope-intercept form
1. 5x-y=12
x+2y=9
2. x-8=y
y+2=x

Click here to see answer by jim_thompson5910(28715)

Question 147443: 26) Find values of m and b in the following system so that the solution to the system is (-3,4).
5x+7y=b
mx+y=22

Can someone please show how to solve this problem. I am stuck.
v/r

Click here to see answer by Nate(3500)

Question 147465: x+7/6=2x-7/6

Click here to see answer by jim_thompson5910(28715)

Question 146383: Would someone please show me the steps to solve this linear equation please?
-3(-x+4) = 3x - 12
Thank you so much!!

Click here to see answer by Electrified_Levi(103)

Question 146383: Would someone please show me the steps to solve this linear equation please?
-3(-x+4) = 3x - 12
Thank you so much!!

Click here to see answer by jim_thompson5910(28715)

Question 147496: two points on a graph. -8 4 and 6 -2. create the equaition that represents the coordinates.
Click here to see answer by Alan3354(31518)

Question 147515: I just don't understand the whole equations or slopes.
1. A line passing through (,4), has a slope of m = 3. Another point on the same line is_________________.
a.(4,7) b.(4,4) c.(4,5) d. (1,7)
2. Rearrange the equation 3x + 2y = 15 into the slope-intercept form y = mx + b.
Click here to see answer by stanbon(57967)

Question 147516: I had help with a previous question, and it was not a solvable problem. I need to see the steps on how the elimination process is done. Could you please help?
7r-4s=7
4r+7s=69
I need to solve using the elimination method. I think I need to solve for x, and use that answer in the 2nd equation. Your help is greatly apprecieated.
Click here to see answer by Alan3354(31518)

Question 147542: Determine the equation of a line through (0,9) with a slope of 1/2. Write the answer in slope intercept form.
Click here to see answer by mangopeeler07(462)

Question 147542: Determine the equation of a line through (0,9) with a slope of 1/2. Write the answer in slope intercept form.
Click here to see answer by Electrified_Levi(103)

Question 147543: Find the slope and intercept of the line 3x+5y+10=0
Click here to see answer by edjones(7569)

Question 147556: Graph the inequality.
y < 1/2x + 2
Click here to see answer by mangopeeler07(462)

Question 147588: the number of radio stations on the air from 1950 to 1995 may be modeled by
f(x)214.3x-415,368, where x is the year
how man radio stations were on air in 1980
i'm not sure if i replace 1980 with x, and i'll get 8946
what is the slope of the graph
not certain
interept the slope as a rate
huh?
lol, hopefully someone can help!
Click here to see answer by adamchapman(301)

Question 147589: ok here's a few i'm not sure if they're right or not and the last one I just can't seem to understand, hope someone can help!!
give an equation of a line that is perpendicular to the line
y=1/3x+1
I have y=-3x+2 or y=-3x-1
find a point slor form of the line passing through (1980,5) and (2000,45)
i have y=2x+5
I'm really confused about that one!
find an equation of the line that horizontal, passing through (3/4,-5/6)
y=-5/6, right?
I don't understand this one at all:
the number of radio stations on the air from 1950 to 1995 may be modeled by
f(x)214.3x-415,368, where x is the year
how man radio stations were on air in 1980
what is the slope of the graph
interept the slope as a rate
Click here to see answer by stanbon(57967)

Question 147601: Not understanding equations and slopes.
A line passing through (1,4) has a slope of m = 3. Another point on the same line is: a. (4,7)
b. (4,4)
c. (4,5)
d. (1,7)
Please explain.
Click here to see answer by jim_thompson5910(28715)

Question 147607: write the equation in the slope intercept form for the line passing through (2,1) and (-1,3)
I know that slope intercept form is y=mx+b
and the slope is -2/3
any help?
Click here to see answer by jim_thompson5910(28715)

Question 147627: Suppose a positive linear correlation is found between two quantities. Does this mean that one of the quantities increasing causes the other to increase? If not, what does it mean?
Click here to see answer by stanbon(57967)

Question 147639: I need help using the echelon method to solve each of two equations in two unknowns.
2x + 7y = -8
-2x + 3y = -12
Click here to see answer by jim_thompson5910(28715)

Question 147630: Help me solve 3y=15x-12
Click here to see answer by jim_thompson5910(28715)

Question 147637: a rope 82cm long is cut into two pieces with one peice 4 more than twice as long as the other. find the length of each piece.
Click here to see answer by 24HoursTutor.com(40)

Question 147643:
Click here to see answer by jim_thompson5910(28715)

Question 147648: Solve each system by the addition method. Indicate whether each system is dependent, inconsistent, or dependent.
x+3(y-1)=11
2(x-y)+8y = 28
Click here to see answer by vleith(2825)

Question 147683: I need help on this question, I do not understand how to work the problem.
Demand equation. Helen's Health Foods usually sells 400 cans of ProPac Muscle Punch per week when the price is $5 per can. After experimenting with prices for some time, Helen has determined that the weekly demand can be found by using the equation
d = 600 - 40p,
where d is the number of cans and p is the price of per can.
a) Will helen sell more or less Muscle Punch if she raises her price from $5?
b) What happens to her sales every time she raises her price by $1?
c) Graph the equation.
d) what is the maximum price that she can charge and still sell at least one can?
Click here to see answer by stanbon(57967)

Question 147751: Use the echelon method to solve each system of two equations in two unknowns.
5p + 7q =6
10p - 3q =46
Click here to see answer by jim_thompson5910(28715)

Question 147725: I seriously need help on linear equations. I just don't know how to solve it. People try to help me, then I get it! But then the next day I forget how to do it. Can you help me?
Click here to see answer by Alan3354(31518)

Question 147783: Please help me write a system of two equations for the following:
The probability that San Francisco plays in the next Super Bowl is nine times the probability that they do not play in the next Super Bowl. The probability that San Francisco plays in the next Super Bowl plus the probability that they do not play is 1. What is the probability that San Francisco plays in the next Super Bowl.
Click here to see answer by edjones(7569)

Question 147753: use the echelon method to solve.
x + y/3 = -6
x/5 + y/4 = -7/4
Click here to see answer by Fombitz(13828)

Question 147805: graph the equation using the slope and y intercept;
y=7/5x+2
Click here to see answer by Fombitz(13828)

Question 147804: find the indicated outputs for f(x)= 4x to the second power-5x
f(0)=?
f(-1)=?
f(2)=?
Click here to see answer by Fombitz(13828)

Question 147809: solve the system of equations by graphing.then classify the system as consistent or inconsistant, dependant or independant;
7x-8y=-16
8y-7x=16
Click here to see answer by Fombitz(13828)

Question 147862: Please help me solve this problem in steps y= -7x - 4 (where y= -2)
Thank You
Click here to see answer by checkley77(12569)

Question 147868: I need your help. I am using Excel for some problems.
Enter your coefficients and formula for x. Rearrange the equation in the form Ax + B = C.
22x + 60 = -11x - 6
-7 (x - 4) -11x - 6 = 2x
(3/2) = x + (2/5)
Can you explain??

Click here to see answer by stanbon(57967)

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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