1.
State the slope and
y
-intercept of the graph of -
y
= -0.9
x
+ 4.
A.
m
= -4,
b
= 0.9
B.
m
= 4,
b
= -0.9
C.
m
= 0.9,
b
= -4
D.
m
= -0.9,
b
= 4
Hint
2.
What is the slope of the line with equation
A.
7
B.
C.
D.
-7
Hint
3.
What is the
y
-intercept of the graph of the line with equation
A.
7
B.
C.
D.
-7
Hint
4.
Write the equation of the line through (5, -3) and (-2, -8) in slope-intercept form.
A.
B.
C.
D.
Hint
5.
A phone company charges for service as follows: they charge a certain amount for a visit, and then they charge a certain amount per hour after that. If a three-hour service visit costs $220, and a job that takes an hour and a half costs $145, how much is the cost of a visit before the amount of time spent is factored in?
A.
$217
B.
$25
C.
$70
D.
$50
Hint