Question

As a​ fundraiser, a school club is selling posters. The printer charges a ​$27 ​set-up fee, plus ​$0.75 for each poster. Then the cost y in dollars to print x posters is given by the linear equation

y=0.75x+27.

a. What is the cost y in dollars to print 50 posters? 100 posters?

Answer 1

Explanation:

The printer charges a ​$27 ​set-up fee, plus ​$0.75 for each poster. The set up fee is constant.

The cost y in dollars to print x posters is given by the linear equation

y=0.75x+27.

a) To find the cost, y in dollars to print 50 posters, we will substitute 50 for x in the given linear equation. It becomes

y=0.75x+27

y = 0.75 × 50 +27

y = 37.5 +27 =$64.5

b) To find the cost, y in dollars to print 100 posters, we will substitute 100 for x in the given linear equation. It becomes

y=0.75x+27

y = 0.75 × 100 +27

y = 75+27 =$102