Question

What are the important points to graph `y = -2 sin 2x`?

Answer 1

Amplitude `=2`
Period `=pi`

Explanation:

Y = A sin(Bx+C) + D where
Amplitude = A; Period = 2pi/B; Phase shift = -C/B; Vertical shift = D.
Amplitude `A=2`
Period `=(2pi)/2=pi`
Phase shift `=-0/2=0`
Vertical shift `=0`