Find the requested value. -$f ( - 7 )$ for $f ( x ) = \left\{ \begin{array} { l l } 4 x + 1 , & \text { if } x 11 \end{array} \right.$ A) 29 B) $- 27$ C) $- 49$ D) 63

Question

Find the requested value.
-$f ( - 7 )$ for $f ( x ) = \left\{ \begin{array} { l l } 4 x + 1 , & \text { if } x < 7 \ 7 x , & \text { if } 7 \leq x \leq 11 \ 7 - 8 x , & \text { if } x > 11 \end{array} \right.$
A) 29
B) $- 27$
C) $- 49$
D) 63

Quizplus · Accepted Answer

Since $x = -7$, we use the first case $4x + 1$ because $x < 7$. Substituting $-7$ for $x$, we get $4(-7) + 1 = -28 + 1 = -27$.

Find the Requested Value f(−7)f ( - 7 )f(−7) For A) 29 B)

Find the Requested Value $f ( - 7 )$ For A) 29
B)