Math 160 Notes Packet #6 Quadratic Functions - Prof. Beydler Page 4
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6Notes Packet #6
Math 160
Page 4 of 6
Practice for Packet #6
2
1. Let �� ( �� ) = −��
+ 6�� − 7.
a) Express �� in standard form.
b) Sketch the graph of ��.
c) Find the maximum or minimum value of ��.
d) Find the range of ��.
2. A graduation cap is thrown up with a velocity of 20 ft/s. Its height after ��
2
seconds is given by �� = 20�� − 16��
(in feet). What is the maximum height
attained by the cap?
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