The graph shows the daily revenue earned selling coupon
cards in a fundraiser if the price is decreased by x dollars.
which function can be used to determine the daily revenue
if the price of a coupon card is decreased by x dollars?
1 coupon cards fundraiser
5.45)
(3, 49)
48 1.45)
+00.40)
r(x) = -x2 + 6x + 40
r(x) = -(x - 4)(x + 10)
• r(x) = -(x2 – 14x + 40)
r(x) = -(x + 3)2 + 49
17.33)
daily revenue ($)
(9, 13)
1
9
10
x
2 3 4 5 6 7 8
decrease in price (5)
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