The table below shows the rates at a parking garage. (table in pic) if this were graphed on a grid in cents instead of dollars, the slope of the line would be-

Hello there!

The slope of the line would be much steeper because of the larger quantity of units on the y axis. I have graphed both for you down below. The first pic is in dollars and the second pic is in cents. 

I hope I helped!

~ Fire

J= r + 9 because since jessica rode 9 more miles than roger, you add 9 miles to rogers mileage.