Find the requested value. -$f ( 8 )$ for $f ( x ) = \left\{ \begin{array} { l l } 8 x + 1 , & \text { if } x 11 \end{array} \right.$ A) 56 B) $- 32$ C) 64 D) 9

Question

Find the requested value.
-$f ( 8 )$ for $f ( x ) = \left\{ \begin{array} { l l } 8 x + 1 , & \text { if } x < 1 \ 8 x , & \text { if } 8 \leq x \leq 11 \ 8 - 5 x , & \text { if } x > 11 \end{array} \right.$
A) 56
B) $- 32$
C) 64
D) 9

Quizplus · Accepted Answer

Since $x = 8$ falls into the second case where $8 \leq x \leq 11$, we use the corresponding function $f(x) = 8x$. Substituting $x = 8$ gives $f(8) = 8 \times 8 = 64$.

Find the Requested Value f(8)f ( 8 )f(8) For A) 56 B)

Find the Requested Value $f ( 8 )$ For A) 56
B)