3. The function y = 2(x+3)+(x + 1)²(x − 3) changes sign at a. x=-1 - b. x=-3 4. Which of the following is not a polynomial function? b. y=2x+1 a. y = 5x c. x=3 d. it doesn't change sign c. y=x³ −x² + 1 d. y = 4x(x-5)(x+6)
3. The function y = 2(x+3)+(x + 1)²(x − 3) changes sign at a. x=-1 - b. x=-3 4. Which of the following is not a polynomial function? b. y=2x+1 a. y = 5x c. x=3 d. it doesn't change sign c. y=x³ −x² + 1 d. y = 4x(x-5)(x+6)
Chapter5: Polynomial And Rational Functions
Section: Chapter Questions
Problem 3PT: Determine the and behavior of the polynomial function. f(x)=2x2(43x5x2)
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Transcribed Image Text:3. The function y = 2(x+3)+(x + 1)²(x − 3) changes sign at
a. x=-1
-
b. x=-3
4. Which of the following is not a polynomial function?
b. y=2x+1
a. y = 5x
c. x=3
d. it doesn't change sign
c. y=x³ −x² + 1
d. y = 4x(x-5)(x+6)
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