Question

Let the function f(x) have the form fx) = Acos(x+C). To produce a graph that matches the one shown below, what must the value of A be?

Answer 1

Answer: it’s 2

Step-by-step explanation: just took the quiz on ap3x

Answer 2

B. 4

Explanation:

The given function is of the form:

`f(x) = A \cos(x+C).`

A is called the amplitude of the given function.

We can read from the graph that, the function ranges between:

-4 and 4

This implies that:

`|A| = 4`

Therefore the amplitude of the function is 4.

Hence the value of A must be 4.