Question

What is the amplitude of the function?

A. 4
B. 3
C. 2
D. 1​

Answer 1

D. 1

Explanation:

The amplitude of a periodic function is given by:

`amplitude = ( |max - min| )/(2)`

The minimum value from the graph of the function is -1 and the maximum value is 1.

Therefore the amplitude of the function is:

`= ( |1 - - 1| )/(2) = ( |2| )/(2) = (2)/(2) = 1`

The correct answer is option D.