4. Find the critical numbers of each function. Then, find the open intervals of increase and decrease. a. f(x)=2x²-9x+1 b. f(x) = x²/³ - 8x c. f(x) = x(2x+5)³ d. f(x) = x+5 X-1

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Chapter1: Functions And Models
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Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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4. Find the critical numbers of each function. Then, find the open intervals of increase and decrease.
a. f(x)=2x²-9x+1
b. f(x) = x²/³ - 8x
c. f(x)= x(2x+5)³
d. f(x) = * +5
X-1
Transcribed Image Text:4. Find the critical numbers of each function. Then, find the open intervals of increase and decrease. a. f(x)=2x²-9x+1 b. f(x) = x²/³ - 8x c. f(x)= x(2x+5)³ d. f(x) = * +5 X-1
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