Question

Find the amplitude, period, and phase shift of f(x) = –2sin (7x + 7).

Answer 1

Amplitude:2, period:0.9 and phase shift:7

Explanation:

In a function with the form y=Asin(Bx+c)+D, and given the function f(x) = –2sin (7x + 7), we get that:

A is the amplitude: 2

Period is given by 2pi/B, so 2pi/7=0.9

Phase shift is c: 7