1. the cost C (in dollars) per unit of making X photocopies at the office shop is given below. 18 cents for at most 20 copies
12 cents for more than 20 copies up to 50
9 cents for more than 50 copies but less than 100
5 cents for 100 copies or more but up to 200
3 cents for more than 200 copies
Part A: write the piecewise-defined function that represents the situation.
Part B: Represent the function on a graw. ( or just tell me the points and ill mark them on the graph)
Part C: Explain why it would not be cost effective to make 150 photocopies.