The charge to rent a trailer is $15 for up to 2 hours plus $8 per additional hour or portion of an hour. find the cost to rent a trailer for 2.8 hours, 3 hours, and 8.5 hours. then graph al ordered pairs, (hours, cost), for the function a. what is the cost to rent a trailer for 2.8 hours?

The cost to rent a trailer for 2.8 hours is $21.4.

The cost to rent a trailer for 3 hours is $23.

The cost to rent a trailer for 8.5 hours is $67.

Step-by-step explanation:

Let x be the number of hours.

It is given that the charge to rent a trailer is $15 for up to 2 hours plus $8 per additional hour or portion of an hour.

The cost to rent a trailer for x hours is defined as

For x>2, the cost function is

We need to find the cost to rent a trailer for 2.8 hours, 3 hours, and 8.5 hours.

Substitute x=2.8 in the above function.

The cost to rent a trailer for 2.8 hours is $21.4.

Substitute x=3 in the above function.

The cost to rent a trailer for 3 hours is $23.

Substitute x=8.5 in the above function.

The cost to rent a trailer for 8.5 hours is $67.

Written all the ordered pairs in the form of (hours, cost).

(2.8,21.4), (3,23) and  (8.5,67)

Plot these points on coordinate plane.

4x and 6y

im not sure though