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

1 Answer

5 votes

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 = (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.

User Thenewbie
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