Find the open intervals on which the function $y = \left\{ \begin{array} { l } 2 x + 7 , x \leq 7 \ 4 - x ^ { 2 } , x 7 \end{array} \right.$ is increasing or decreasing. A)The function is increasing on the interval $- \infty

Question

Find the open intervals on which the function $y = \left\{ \begin{array} { l } 
2 x + 7 , x \leq 7 \
4 - x ^ { 2 } , x > 7
\end{array} \right.$ is increasing or decreasing.
A)The function is increasing on the interval $- \infty < x < 0$ and decreasing on the interval $0 < x < \infty$ .
B)The function is increasing on the interval $7 < x < \infty$ and decreasing on the interval $- \infty < x < 7$ .
C)The function is increasing on the interval $- \infty < x \leq 7$ and decreasing on the interval $7 < x < \infty$ .
D)The function is increasing on the interval $0 < x < \infty$ and decreasing on the interval $- \infty < x < 0$ .
E)The function is increasing on the interval $- \infty < x < 7$ and decreasing on the interval $7 < x < \infty$ .

Quizplus · Accepted Answer

The Answer of Find the open intervals on which the function $y = \left\{ \begin{array} { l } 
2 x + 7 , x \leq 7 \
4 - x ^ { 2 } , x > 7
\end{array} \right.$ is increasing or decreasing.
A)The function is increasing on the interval $- \infty < x < 0$ and decreasing on the interval $0 < x < \infty$ .
B)The function is increasing on the interval $7 < x < \infty$ and decreasing on the interval $- \infty < x < 7$ .
C)The function is increasing on the interval $- \infty < x \leq 7$ and decreasing on the interval $7 < x < \infty$ .
D)The function is increasing on the interval $0 < x < \infty$ and decreasing on the interval $- \infty < x < 0$ .
E)The function is increasing on the interval $- \infty < x < 7$ and decreasing on the interval $7 < x < \infty$ .

Find the Open Intervals on Which the Function y={2x+7,x≤74−x2,x>7y = \left\{ \begin{array} { l } 2 x + 7 , x \leq 7 \\4 - x ^ { 2 } , x > 7\end{array} \right.y={2x+7,x≤74−x2,x>7​

Find the Open Intervals on Which the Function $y = \left\{ \begin{array} { l } 2 x + 7 , x \leq 7 \\4 - x ^ { 2 } , x > 7\end{array} \right.$