Question

The cost, c, for mailing books is a function of the number of books, b. The

cost to mail books is $0.50 per book plus a $3.00 flat fee

Answer 1

assuming you’re looking for the function of the cost:

c = 0.5b + 3

b (number of books) is the slope
3 (the flat fee) is the y-intercept

hope this helps!

Answer 2

c = 3.00 + .50b

Explanation:

The cost is the flat fee plus the cost per book times the number of books

c = 3.00 + .50b