Question

A sound wave has the from represented in the graph. Which of the following equations represent the graph? Select all that apply

f(x)=5cos(x + pi/4)
f(x)=5sin(x + pi/4)
f(x)=5cos(x + 2pi/4)
f(x)=5sin(x + 2pi/4)
f(x)=5cos(x + 3pi/4)
f(x)=5sin(x + 3pi/4)

Answer 1

Answer: 1. A, F

2. B. C , F

3.A,C

Step-by-step explanation:I just finished the practice

Answer 2

A. f(x)=5cos(x+pi/4)

F. f(x)=5sin(x+3pi/4)

Explanation: