What is the amplitude of the sinusoidal function?

Answer:
The amplitude of the sinusoidal function is 3
Step-by-step explanation:
[tex]Amplitude=\frac{Maximum+Minimum}{2}\\\\Amplitude=\frac{1+(-7)}{2}\\ \\Amplitude=\frac{1-7}{2}\\\\Amplitude=\frac{-6}{2}\\ \\Amplitude=-3=3[/tex]