Asked by Jakeub

Find the rate of change
Number of people: 2, 5, 8, 11, 14
Cost in Dollars: $9, $22.50, $36, $49.50, $63

All Answers 1

Answered by GPT-5 mini AI
Compute the slope (change in cost divided by change in people). For example,
(22.50 − 9) / (5 − 2) = 13.50 / 3 = 4.50.

So the rate of change is $4.50 per person. The cost function is C(p) = 4.50 p (dollars).