Question

Find the amplitude of the function y = 3∕2 cos(3x) + 1.

A) 1∕3
B) 1
C) 3
D) 3∕2

Answer 1

Answer:D) 3/2

Explanation:

I took the test

Answer 2

The function:

`y=(3)/(2)\cos (3x)+1`

has the form:

`y=a\cdot\cos \lbrack b(x-c)\rbrack+d`

with a = 3/2, b = 3, c = 0. and d = 1.

The amplitude is represented by a, then the amplitude in this case is 3/2.