Identify the Maximum and Minimum Values of the Function in the Interval

question 134

Multiple Choice

Identify the maximum and minimum values of the function in the interval $[-2 \pi, 2 \pi]$ . Use your understanding of transformations, not your graphing calculator.
- $$y = - \cos 3 x$$

• A) Maximum value \(= \frac { 1 } { 2 } ;\) minimum value \(= - \frac { 1 } { 2 }\)
• B) Maximum value \(= 1\); minimum value \(= 0\)
• C) Maximum value \(= 3 ;\) minimum value \(= - 3\)
• D) Maximum value \(= 1\); minimum value \(= - 1\)