Question

As a fundraiser, a school club is selling posters. The printer charges a $19 set-up fee, plus $0.40 for each poster. Then the cost y in dollars to print x posters is given by the linear equation y=0.40x+19.

(a) What is the cost y in dollars to print 50 posters?
To print 100 posters?

The printing of 50 posters costs $

The printing of 100 posters costs $

(b) Find the number of posters x if the printer billed the
club for costs of $91.00.

The number of posters, printed for $91.00, is

(c) Write the information from parts (a) and (b) as three
ordered pairs.

The first pair from (a) is

The second pair from (a) is

The pair from (b) is

Answer 1

(a) y= 0.40(50) +19~~~~~
(b)91.00= 0.40(x) + 19 ~~~~~