Use the Graph to Find the Intervals on Which It $( - \infty , \infty )$

question 120

Multiple Choice

Use the graph to find the intervals on which it is increasing, decreasing, or constant.
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• A) Increasing on \(( - \infty , \infty )\)
• B) Increasing on \(\left( - \pi , - \frac { \pi } { 2 } \right)\) and \(\left( \frac { \pi } { 2 } , \pi \right)\); decreasing on \(\left( - \frac { \pi } { 2 } , \frac { \pi } { 2 } \right)\)
• C) Decreasing on \(\left( - \pi , - \frac { \pi } { 2 } \right)\) and \(\left( \frac { \pi } { 2 } , \pi \right)\); increasing on \(\left( - \frac { \pi } { 2 } , \frac { \pi } { 2 } \right)\)
• D) Decreasing on \(( - \pi , 0 )\); increasing on \(( 0 , \pi )\)

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