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