Question

Suppose a compact car uses 1 gallon of fuel for every 27 miles traveled. How would the graph for the compact car compare to the graph for the car shown?

Answer 1

You get 20 miles for every one gallon

Answer 2

If you made a graph for the compact car, it would be above the dotted line shown here. Because the compact car used 1 gal for 27 miles (which is the distance) and the car shown in this graph uses 1 gal for only 20 miles. So compared to this graph the compact car's graph would be above. I have a PDF here for you.