А A
3
- 2
0
2
3
В
The distance AB rounded to the
nearest tenth = [?]

(a) Amplitude = 4

(b) --- Period

(c)

--- phase shift

--- vertical shift

Step-by-step explanation:

Given

Rewrite the function as:

Solving (a): The amplitude

A cosine function is represented as:

Where:

So, in this equation (by comparison):

The amplitude is 4

Solving (b): The period (T)

This is calculated as:

By comparison:

So:

Solving (c): The shift

The phase shift is C

The vertical shift is D

By comparison:

--- phase shift

--- vertical shift