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4. Polynomial Functions

4. Polynomial Functions / Understanding Polynomial Functions / Problem 4

Problem 4

Express that the given function has a real zero between the numbers given using the intermediate value theorem.
ƒ(x)=-4x³+ 9x²+2x -1; 0 and 2

A

ƒ(0) = -1 < 0; ƒ(2) = 7 > 0

B

ƒ(0) = -1 < 0; ƒ(2) = -7 < 0

C

ƒ(0) = 1 > 0; ƒ(2) = 7 > 0

D

ƒ(0) = 1 > 0; ƒ(2) = -7 < 0