The graph of a sinusoidal function has amplitude and period

MATHEMATICS · Single correct · AP · AP Precalculus · Trigonometric and Polar Functions · Trigonometric and Polar Functions

Problem

The graph of a sinusoidal function

y=g(x)

has amplitude

3

and period

\pi

. Which equation best represents

g(x)

? (a)

y=3\sin\dfrac{x}{2}

(b)

y=3\sin x

(c)

y=3\sin 2x

(d)

y=\sin 2x