The cost of renting a pickup truck at trucks plus is $25 plus $15 cents per mile driven. the cost of renting a truck at need-a-truck is $25 plus $10 cents per mile driven. in a graph of the cost of a truck rental, what does the cost per mile driven represent?

Okay so. Here's what it looks like :    TRUCK PLUS: $25 is the fee upfront. so no matter what your GOING to pay $25 for using the company. Next 15 cents for every mile driven. So if the truck were to drive 3 miles it would be $.45 cents

NEED-A-TRUCK : Same thing. You have to pay $25 no matter what. But for this company you have to pay $.10 per mile.  COST PER MILE means that basically the more miles you drive, the more cents you have to pay. Does that make sense?