adult education
posted by Bernice on .
Determine the amplitude of: y=2sinx

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A typical trigonometric function such as
f(x) = a sin k(xφ)
has the following definitions:
amplitude = a, or the absolute value of a
period = 2π/k
phase shift = φ
For example,
y = 3 sin 2(xπ/4)
has an amplitude of 3, period of 2π/2=π, and phase shift of π/4 to the right.
So for y = 2 sin x,
the amplitude would be 2 = 2.