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

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 $f ( 2 ) = 80$