Please help me I’m desperate

In the coordinate plan (-6,9) b (3,9) c (3,3) def is shown in the coordinate plan below

Ahome improvement store rents it’s delivery truck for $19 for the first 75 minutes and $4.75 for each additional 1/4 hour. if a customer rented the truck at 11: 10 am and returned the truck at 1: 40 pm the same day, what would his rental cost be?

The table represents a function. what is f(-2)? a.-3 b. -1 c.1 d.3