Aschool typically sells 500 year books in a year for $50 each. the economics class does a project and discovers that they can sell 125 more year books for every $5 decrease in price. the revenue for year book sales is r(x)= ( 500 +125x )( 50- 5x )

to maximize the profit what price should the school charge for the yearbooks?

35, 40, 45, 50?

The answer is $40

500*50x=25,000

625*40x=25,000

in the attachment.   i didn't see your choices.   the word which means there is choices.

step-by-step explanation:

(x,y)

x tells you how much left or right you go from the origin

y tells you how much down or up you go from the origin

so for example (-3,2), you go left 3 and up twice. i denoted which of the ordered pairs is which in my graph.