The following tables shows the cost of apples. Number of Apples (x)35811
Cost (y)$2.37$3.95$6.32$8.69
Assume the cost of apples is a linear function of the number of apples purchased.

Part A

Write a linear equation that describes the cost of apples, y, in dollars, as a linear function of the number of apples purchased, x.

Part B

Is the function discrete?

Answer choices:

a) Yes

b) No

What number does the function assign to 15?

The function assigns the number to 15 which means the cost of apples is $.