Question

How do you graph `y=15e^(-.25t)cos(1.2pit)`?

Answer 1

See below.

Explanation:

graph{15e^(-0.25x)cos(1.2pix) [-10, 10, -5, 5]}

Here. It goes really high as you go to the negatives, and lower as you move left. At `x=32.92` and after, `y` is a constant `0`.