Part 4 of 15 40 40 points question 6 of 25 40 40

Part 4 of 15 - 4.0/ 4.0 Points
Question 6 of 25
4.0/ 4.0 Points
The equation of a line is y = -2x + 6. What is the slope of a line parallel to it?
A.m = 2
B.m = -1/2
C.m = - 2
D.m = 6
E.None of these.
MATH110 Final Exam July 2013 ...
4 of 15 12/26/2013 12:38 AM

Part 5 of 15 - 4.0/ 12.0 Points
Question 7 of 25
0.0/ 4.0 Points
Write an equation for the line perpendicular to the line x = 9 and passing through the point (12, 2).
A.y = 12
B.None of these.
C.y = 2
D.x = 2
E.x = 12
Question 8 of 25
0.0/ 4.0 Points
Write an equation for the line parallel to the line x = 3 and passing through the point (10, 7).
A.y = 10
B.y = 7
C.x = 10
D.x = 7
E.None of these.
Question 9 of 25
4.0/ 4.0 Points
Write an equation of the line passing through (3, -4) and parallel to y = - 7x + 9.
A.y = - 7x + 17
B.y = - 7x - 17
C.y = 7x - 17
D.None of these.
E.y = 7x + 17
Part 6 of 15 - 0.0/ 4.0 Points
Question 10 of 25
0.0/ 4.0 Points
When making a telephone call using a calling card, a call lasting 6 minutes costs $2.90. A call lasting 13
minutes costs $5.70. Find a linear function that relates the cost, C, of a making a call to the length, x, of the call,
treating length of the call as the independent variable.
MATH110 Final Exam July 2013 ...
5 of 15 12/26/2013 12:38 AM

A.C = -.4x - 12.1
B.C = -.4x + 5
C.None of these.
D.C = .4x + .5
E.C = -.4x - 7.3
Part 7 of 15 - 4.0/ 4.0 Points
Question 11 of 25
4.0/ 4.0 Points
True or False: The ordered pair (6, -3) is a solution to this system of equations
x + y = - 9
x - y = - 3
True
False
Part 8 of 15 - 8.0/ 12.0 Points
Question 12 of 25
4.0/ 4.0 Points