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

Tutors Answer Your Questions about Linear-equations (FREE)

Question 188412: graph the linear equation. (HOW DO YOU SET UP THE PROBLEM?)
7y= x+7
Click here to see answer by solver91311(16868)

Question 188498: Write an equation for line e.
Click here to see answer by Alan3354(30939)

Question 188513: I have been searching sites all afternoon trying to understand this. There is table A with X and y coordinates of (-2,-1), (-1,1) (0,3) (1,5) (2,7). Then there is Table B with (-2,-5), (-1,-3), (0,-1), (1,1) (2,3) you are then asked to find the differences in x and y values?? I guess I just don't understand what they're looking for.
Click here to see answer by solver91311(16868)

Question 188608: For the exponential function e^x and logarithmic function log x, graphically show the effect if x is halved.
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Question 188681: A straight line passes through the points (5,3) and (7,1)
a. find its slop
b. find equation of this line using point-slop from of the line
c. find x-intercpt and y-intercept of the line.
d. find the equation of a line by slop-intercept from of the line. verify
whether it is sme as one obtained in part (b)
Click here to see answer by Alan3354(30939)

Question 188769: The length of a rectangle is 2 ft more than twice the width. The area of the rectangle is 84ft2. Find the length and width of the rectangle.
Click here to see answer by stanbon(57214)

Question 188867: Suppose that the width of a rectangle is 2 inches shorter than the length and that the perimeter of the rectangle is 80.
Set up an equation for the perimeter involving only L, the length of the rectangle.
Solve this equation algebraically to find the length of the rectangle. Find the width as well.
Length ______, Width ______

Click here to see answer by jonvaliente(64)

Question 188866: A tennis club offers two payment options:
Option1: $32 monthly fee plus $3/hour for court rental
Option 2: No monthly fee but $6.50/hour for court rental.
Let x = hours per month of court rental time.
a) Write a mathematical model representing the total monthly cost, C, in terms of x for the following:
Option 1: C=_________________
Option 2: C=_________________
b) How many hours would you have to rent the court so that the monthly cost of option 1, is less than option 2. Set up an inequality and show your work algebraically using the information in part a. Round to 3 decimal places if necessary.
Click here to see answer by jonvaliente(64)

Question 188880: Y= -2 x
-------
3
2x + 3y = 5

Click here to see answer by Mathtut(3670)

Question 188922: Find an equation of the line containing the given pair of points (3,5) and (9,7)
Click here to see answer by Mathtut(3670)

Question 188940: is the equations y=-2x+7 and y=-2x-6 parallel or perpendicular?

Click here to see answer by jojo14344(1512)

Question 188959: Create two linear equations in which the intercept point is (2,9). The final equation must be in elimination by addition form.
Click here to see answer by stanbon(57214)

Question 188983: solve system of equations by graphing
-3x-2y=18
3x-y=0
Click here to see answer by solver91311(16868)

Question 188979: Wireless phone company A charges $20 per month plus $0.12 per minute. Wireless phone company B charges $50 per month plus $0.06 per minute. For how many minutes of calls will the monthly bills be the same?
A)80 minutes
B)100 minutes
C)160 minutes
D)250 minutes
E)500 minutes
Click here to see answer by Mathtut(3670)

Question 188985: solving each system of equations by graphing
2x-3y=21
? no idea what im doing please help!
Click here to see answer by solver91311(16868)

Question 189027: find the equation of the line that contains the point (-1, -3) and is perpendicular to the graph of 3x-5y=2
Click here to see answer by jojo14344(1512)

Question 189027: find the equation of the line that contains the point (-1, -3) and is perpendicular to the graph of 3x-5y=2
Click here to see answer by Alan3354(30939)

Question 189050: solve the system of equations by graphing
5x-6y=18
5x=6y+18
and also graph

Click here to see answer by solver91311(16868)

Question 189082: I am learning about linear word problems, perpendicular lines, and horizontal and vertical lines for reviewing the chapter. This is the word problem: Jane got a regular job and started adding $9 per week to her savings account. At the end of 11 weeks, she had $315 in savings. Write a linear equation to model this situation. Identify the x- variable and the y-variable. The second question asks how much did she have in her account after the 4th week? I would really appreciate it if you could help me with this word problem. It would help me understand how to solve it. Thanks.
Click here to see answer by solver91311(16868)

Question 189088: What are the x and y intercepts for 7x-2y=14=0?
Click here to see answer by Alan3354(30939)

Question 189088: What are the x and y intercepts for 7x-2y=14=0?
Click here to see answer by stanbon(57214)

Question 189106: FIND THE MISSING CORDINATES 2X+4Y=24 (8, ) ( ,-2)
Click here to see answer by bsmath(21)

Question 189200: Describe on which side of the line, the graph would be shaded for each question. Check some points to be sure you have shaded correctly.
3x - 2y <= 12

a) above the line
b) below the line
c) to the left of the vertical line
d) to the right of the vertical line
Click here to see answer by stanbon(57214)

Question 189168: slope=-1,through(4,3)
Click here to see answer by Mathtut(3670)

Question 189199: Solve each of these system of equations.
1) x + 2y + z = 10
2x - y + 3z = -5
2x - 3y - 5z = 27

a) x = 4, y = 7, z = -5
b) x = -5, y = 4, z =7
c) x = 7, y = -5, z = 4
d) x = 7, y = 4, z = -5

On this question use the RREF function on your calculator
2) 3x + y + z = 4
2x + 2y + 3z = 3
x + 3y + 2z = 5

a) x = -1, y = 2, z = 1
b) x = 2, y = 1, z = -1
c) x = 1, y = 2, z = -1
d) x = 1, y = -1, z = 2
May you explain how to solve these questions?
Click here to see answer by Alan3354(30939)

Question 189263: The line passes through the points (8,1) and (6,2). What is the slope?
Click here to see answer by Alan3354(30939)

Question 189315: The y-intercept of the graph of the equation y=2x-3 ???????
Click here to see answer by checkley75(3666)

Question 189300: Graphically solve the two folowing linear equations:
y-2x=2
3y+x=20
Click here to see answer by checkley75(3666)

Question 189316: What is the slope of the graph of the equation x=3
Click here to see answer by Alan3354(30939)

Question 189387: solve the systems y=-x and y=4x-8
Click here to see answer by Mathtut(3670)

Question 189447: 4x+4y=20
Click here to see answer by Mathtut(3670)

Question 189405: I am having trouble with this other question about linear equations and slope. I think I have to put this problem in slope intercept form. I already know that the answer is y=-2, but I don't see how to solve it. I would really appreciate it if anyone could help me out. Thanks.
Click here to see answer by Mathtut(3670)

Question 189448: I would appreciate any help in solving this problem, Please. Thank You!
Ax=By-C
Give the slope and y-intercept of each line whose equation is given. Assume that B is not equal to 0.

Click here to see answer by Mathtut(3670)

Question 189432: solve by addition or subtraction and check result
3x+2y=23
x+y=8
Click here to see answer by jojo14344(1512)

Question 189413: I am new to this whole algebra thing. I am stumped on this one question
Solve system of equations
x+y+z=10
x-1 =-1
x+y =5
Click here to see answer by checkley75(3666)

Question 189471: Why is the line x=4 a veritical line?
Click here to see answer by methew(2)

Question 189472: From a base elevation of 8400ft a mountain peak in Colorado rises to a summit elevation of 14856 over a horizontal distance of 15849ft, find the grade. I am having trouble determining how to set this equation up.
Click here to see answer by ankor@dixie-net.com(15622)

Question 189578: solve the system by graghinng. then classify the system as consisten or inconsistent and as dependent or independent.
y=2x-5
y=x-6
what is the solutionof the system of equations?

Click here to see answer by jim_thompson5910(28476)

Question 189645: A) Use the vertical ling test to determine whether the equation x=y^2-1 represents y as a function of x. B) if the graph fails, draw a vertical line on the graph which indicates the equation is NOT a function.
Click here to see answer by user_dude2008(1861)

Question 189670: how do u do elimination
Click here to see answer by Mathtut(3670)

Question 189692: Find an equation of the line containing the given pair of points (2,3) and (6,5)
Click here to see answer by jim_thompson5910(28476)

Question 189690: Find an equation of the line containing the given pair of points (-9,0) and (0,7)
Click here to see answer by jim_thompson5910(28476)

Question 189693: Find an equation of the line containing the given pair of points (1,5) and (3,6)
Click here to see answer by jim_thompson5910(28476)

Question 189702: Find an equation of the line containing the given pair of points. (4,1) and (12,3)
Click here to see answer by jim_thompson5910(28476)

Question 189711: Find an equation of the line containing the given pair of points. (4,2) and (12,3)
Click here to see answer by jim_thompson5910(28476)

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