Utility is a type of function that occurs in eco-nomics. When a consumer receives a units of a product, a certain amount of pleasure, or utility U, is gained. The following represents a typical utility function. Utility (pleasure units) UA 200 150 100 (1,70) 50- 0 (4,161) (3, 138) (2, 109) 1 3 4 Number of units of product 92-91) 22 - 21 Find the average rate of change of U as a change from 0 to 1. Find the average rate of change of U as a change from 1 to 2. Find the average rate of change of U as a change from 2 to 3. Find the average rate of change of U as a change from 3 to 4. (HINT: average rate of change =