Question

Below is the graph of a trigonometric function. It has a maximum point at

(1/4pi,-2.2)
and a minimum
point at
(3/4pi,-8.5) what is the amplitude

Answer 1

Explanation:

Amplitude is the distance between the center line of the function and the top or bottom of the function.

The amplitude is half the distance between the max and the min, so

Amplitude = 1/2(max - min)

Amplitude = 1/2(-2.2 -(-8.5))

So amplitude = 1/2(6.3)

= 3.15