For the piecewise function, find the specified function value.
-$f ( x ) = \left\{ \begin{array} { l l }
6 x , & \text { for } x \leq - 1 \
x - 5 , & \text { for } x - 1
\end{array} \right.$
f(-7)
A) 42
B) -12
C) 2
D) -42

Question

For the piecewise function, find the specified function value.
-$f ( x ) = \left\{ \begin{array} { l l } 
6 x , & \text { for } x \leq - 1 \
x - 5 , & \text { for } x > - 1
\end{array} \right.$
f(-7) 
A) 42
B)  -12 
C) 2
D)  -42

Quizplus · Accepted Answer

Since -7 is less than -1, we use the first part of the piecewise function, $6x$. Substituting -7 for x gives $6(-7) = -42$.

For the Piecewise Function, Find the Specified Function Value f(x)={6x, for x≤−1x−5, for x>−1f ( x ) = \left\{ \begin{array} { l l } 6 x , & \text { for } x \leq - 1 \\x - 5 , & \text { for } x > - 1\end{array} \right.f(x)={6x,x−5,​ for x≤−1 for x>−1​

For the Piecewise Function, Find the Specified Function Value $f ( x ) = \left\{ \begin{array} { l l } 6 x , & \text { for } x \leq - 1 \\x - 5 , & \text { for } x > - 1\end{array} \right.$