Regents High School Examination Mathematics Worksheet - University Of The State Of New York Page 20

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34 The members of the Lincoln High School Prom Committee are trying
to raise money for their senior prom. They plan to sell teddy bears. The
senior advisor told them that the profit equation for their project is
+ 9x – 50, where x is the price at which the teddy bears will
2
y = –0.1x
be sold and y is the profit, in dollars.
≤ ≤
On the grid on the next page, graph this relationship so that
0
x
90
≤ ≤
and
.
50
y
160
How much profit can the committee expect to make if they sell the
teddy bears for $20 each?
What price should they charge for the teddy bears to make the
maximum profit possible?
[20]
Math. B – Jan. ’08

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