Use the Intermediate Value Theorem for Polynomials to Show That $f ( x ) = 7 x ^ { 4 } - 8 x ^ { 2 } - 1 ; 1$

question 251

Multiple Choice

Use the intermediate value theorem for polynomials to show that the polynomial function has a real zero between the
numbers given.
- $f ( x ) = 7 x ^ { 4 } - 8 x ^ { 2 } - 1 ; 1$ and 2

• A) \(f ( 1 ) = - 2\) and \(f ( 2 ) = 79\)
• B) \(f ( 1 ) = 2\) and \(f ( 2 ) = 79\)
• C) \(f ( 1 ) = 2\) and \(f ( 2 ) = - 79\)
• D) \(f ( 1 ) = - 1\) and \(f ( 2 ) = 80\)

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