The Following Table Shows the Cost of Renting a Full-Size

The following table shows the cost of renting a full-size rental car, based on the number of miles
driven.
a. Explain why a linear equation is appropriate for this relationship.
b. Find the slope of the line and explain what it means.
c. Find the y-intercept and explain what it means.
d. Determine the equation of the line.
e. Is this a direct variation relationship? Why or why not? Be specific.
f. I am trying to decide whether I can afford to rent a full-size car to drive to St. Louis, which is about 180
miles away. How much would that cost for a one-way trip? How much would it cost for a round trip of 360
miles?
g. Why doesn't the round trip cost twice as much as the one-way trip? Be specific.