Question

How do you find the period and amplitude of `y=3sin2x`?

Answer 1

Amplitude is the value of `a`, which is `3` in this case. This means the vertical distance from the centre line to the max/min is `3` units.

The period is given by `2pi/b = (2pi)/(2) = pi`. Which means that it takes the function `pi` units to repeat itself.

Hopefully this helps!