unit test: graphs of sinusoidal functions enter the amplitude of the function. f(x)=2sinx

Explanation:

Step1: Recall amplitude formula

For a sinusoidal function of the form $y = A\sin(x)$ or $y=A\cos(x)$, the amplitude is given by $|A|$.

Step2: Identify A in given function

In the function $f(x)=2\sin(x)$, $A = 2$.

Step3: Determine amplitude

Since the amplitude is $|A|$, and $A = 2$, the amplitude is $|2|=2$.

Answer:

2