5-4 Analyzing Graphs Of Polynomial Functions Worksheet With Answers Page 22
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23a .
b. Since the end behavior is in the same direction,
it is an even-degree function.
5-4 Analyzing Graphs of Polynomial Functions
c. The graph intersects the x-axis at four points, so there are four real zeros.
Simplify.
3
2
62. (4y
+ 18y
+ 5y – 12) ÷ (y + 4)
SOLUTION:
Use synthetic division method.
64. CHEMISTRY Tanisha needs 200 milliliters of a 48% concentration acid solution. She has 60% and 40%
concentration solutions in her lab. How many milliliters of 40% acid solution should be mixed with 60% acid solution
to make the required amount of 48% acid solution?
SOLUTION:
Let x be the amount of 60% acid solution.
Therefore,
60% solution : 80 mL
40% solution : 200 – 80 = 120 mL
Factor.
2
66. y
– 5y – 8y + 40
SOLUTION:
2
68. b
– 4b – 21
SOLUTION:
2
70. 4x
– 7x – 15
SOLUTION:
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Page 22
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