5-4 Analyzing Graphs Of Polynomial Functions Worksheet With Answers Page 9
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23b. The changes in sign indicate that there are zeros at –5, 0 and 1.
5-4 Analyzing Graphs of Polynomial Functions
c. Relative maxima at x = –3; Relative minima between x = 0 and x = 1.
3
2
18. f (x) = –2x
+ 12x
– 8x
SOLUTION:
a.
b. The changes in sign indicate that there are zeros at 0, between x = 0 and x = 1, and between x = 5 and x = 6.
c . Relative maxima: near x = 4; Relative minima between x = 0 and x = 1.
4
20. f (x) = x
+ 2x – 1
SOLUTION:
a.
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