Chapter 8.1, Problem 20SE

For the following exercises, graph one full period of each function, starting at x = 0. For each function, state the amplitude, period, and midline. State the maximum and minimum x-values and their corresponding x-values on one period for x > 0. State the phase shift and vertical translation, if applicable. Round answers to two decimal places if necessary.

20. $f\left(t\right)=\cos \left(2\left(t+\frac{\pi }{4}\right)\right)-3$