Question

For the function f(t) = -3sin(2t – π), what is the amplitude?
a. π
b. π /2
c. – π /2
d. 3

Answer 1

The amplitude is |-3| = ?

Answer 2

In other words the amplitude is the absolute value of -3.

Answer 3

So it would be 3 when I take the absolute value of it?

Answer 4

Good work! You are correct.
Note that the sine function has maximum and minimum values of +1 and -1 respectively.