As a fundraiser, a school club is selling posters. The printer charges a $15 set-up fee, plus $0.50 for each poster. Then the cost y in dollars to print x posters is given by the linear equation y=0.50x+15.
(a) What is the cost y in dollars to print 50 posters? Print 100 posters?
The printing of 50 posters costs $40.
I found this out by plugging 50 into the equation y=0.50(50)+15.
The printing of 100 posters costs $65.
I found this out doing the same thing by plugging in 100 to the equation y=0.50(100)+15.
(b) Find the number of posters x if the printer billed the club for costs of $110.00.
The number of posters, printed for $110.00, 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:
(d) Use the data from part (c) to graph the equation.
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b) put y = 110 and solve for x which was 100 earlier!!
c) write (x,y) pairs
d) graph u can do using c