5-4 Analyzing Graphs Of Polynomial Functions Worksheet With Answers Page 3
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235-4 Analyzing Graphs of Polynomial Functions
Determine the consecutive integer values of x between which each real zero of each function located.
Then draw the graph.
4
3
2
6. f (x) = –x
+ x
+ 2x
+ x + 1
SOLUTION:
The changes in sign indicate that there are zeros between 2 and 3 and at –1.
4
3
2
8. f (x) = 2x
– x
– 3x
+ 2x – 4
SOLUTION:
The changes in sign indicate that there are zeros between –2 and –1 and between 1 and 2.
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