find the amplitude of the sinusoidal function.

find the amplitude of the sinusoidal function.
Answer
Explanation:
Step1: Identify the maximum value.
From the graph, the maximum value of the function is $M = 4$.
Step2: Identify the minimum value.
From the graph, the minimum value of the function is $m = -4$.
Step3: Calculate the amplitude.
The amplitude $A$ is given by the formula $A = \frac{M - m}{2}$. $$A = \frac{4 - (-4)}{2}$$ $$A = \frac{4 + 4}{2}$$ $$A = \frac{8}{2}$$ $$A = 4$$
Answer:
4