Question

Which functions have an amplitude of 2? Select all that apply.

Answer 1

A and C only

Step-by-step explanation:

The amplitude of a sinusoidal trigonometric function is the coefficient that appears in its expression.

For example if we have

`f(t)=A\cos t`

the A is the amplitude.

Now, from the answer choices given, the two functions that look like the one given above are functions A, B, and D. The function