Average Cost 150 to 151 units

Question

The average cost for a company to produce x units of a product is given by the function A(x) = 16x + 450 . Use A’(x) to x

estimate the change in average cost as production goes from 150 units to 151 units.

Answer 1

A(x) = 16x + 450

A(151) = 16(151) +450

A(150) = 16(150) + 450

A(151) - A(150) = 16(151) - 16(150) = 16

or just find A'(x) = 16