For the piecewise function, find the specified function value.

- $f ( x ) = \left\{ \begin{array} { l l } 3 x + 1 , & \text { for } x < 7 \\7 x , & \text { for } 7 \leq x \leq 12 \\7 - 3 x , & \text { for } x > 12\end{array} \right.$
F(-7)

Question

For the piecewise function, find the specified function value.

-$f ( x ) = \left\{ \begin{array} { l l } 
3 x + 1 , & \text { for } x < 7 \
7 x , & \text { for } 7 \leq x \leq 12 \
7 - 3 x , & \text { for } x > 12
\end{array} \right.$
F(-7)
A)28
B)22
C)-49
D)-20

Quizplus · Accepted Answer

For $F(-7)$, since $-7 < 7$, we use the first part of the piecewise function, $3x + 1$. Substituting $-7$ for $x$, we get $3(-7) + 1 = -21 + 1 = -20$.

For the Piecewise Function, Find the Specified Function Value F(-7) A)28 B)22 C)-49 D)-20

For the Piecewise Function, Find the Specified Function Value F(-7)
A)28
B)22
C)-49
D)-20