Question

Determine the amplitude or Period as requested. Period of y= -2 sin x

Answer 1

amplitude: 2

period: 2pi

The equation for a sin function is:

$y = a \sin(b(x - c) ) + d$

a = the amplitude

b = the period

c = the horizontal shift

d = the vertical shift

the equation to find the period of a sin function is:

$period = \frac{2\pi}{b}$

note: the amplitude is always a positive number, if there is a negative sign in front of it then that means it reflects over the x-axis.