The line graph shows the recorded hourly temperatures in degrees Fahrenheit at an airport. 
At what time was the temperature the highest?
A. 11 a.m.
B. 5 p.m.
C. 2 p.m.
D. 1 p.m.
Answer: D
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Determine what m and b represent.The cost, in dollars, of a one-day car rental is given by 
where x is the number of miles driven.
A. $40 is the cost per day to rent the car and $15 is the extra cost for unlimited miles. B. $0.15 is the cost per day to rent the car and $40 is the cost per mile. C. $15 is the cost per day to rent the car and $0.40 is the cost per mile. D. $40 is the cost per day to rent the car and $0.15 is the cost per mile.
Find the midpoint of the segment with the given endpoints.(
, 3) and (
, -2)
A. 
B. 
C. 
D. 
Find an equation of variation if the following conditions exist.Suppose p varies directly as q and p = 1 when q = 
.
A. p = 2q
B. p = 
q
C. p = 4q
D. p = 3q
Solve the problem.Linda needs to have her car towed. Little Town Auto charges a flat fee of $60 plus 
per mile towed. Write an equation in slope-intercept form which expresses Linda's towing cost, c, in terms of miles towed, x. Find the cost of having a car towed 7 miles.
A. c = 2 + 60; $62 B. c = 2x; $14 C. c = 2x + 60; $74 D. c = 2x + 60; $64