Question

Two parts: Make sure to answer EACH part:

1. What is the rate of change for each shop shown below?

2. Which shop has the GREATEST rate of change?

Answer 1

Answer: Carol's Thrift shop rate of change = $4.99/item

Wilma's Child Care rate of change is $7.50/hr

Explanation:

Carol's Shop: equation of the line is in y=mx + b form, where m = slope = rate of change = $4.99/item

Wilma's slope = (y2 - y1) / (x2 - x1) = (15-0)/ (2-0) = $7.5/hr

Wilma's has the greater rate of change