Answer:
A. 25 miles per gallon
B. 225 miles
Explanation:
Part A is asking for an average - how many miles does the car get out of each gallon. This can be found by dividing the total change in miles by the total change in gallons.
In this case, the changes in each are:
250 miles
10 gallons
250/10 is 25. Thus there are 25 miles per gallon.
Part B is asking for how much can you get with 9 gallons, meaning how many miles corresponds to 9 on the graph. The graph is at 225 miles at the x=9 mark, and thus the answer for part be is 225.