Give the amplitude or period as requested.
-Amplitude of $y = - 3 \cos \frac { 1 } { 2 } x$
A) $\frac { \pi } { 3 }$
B) $4 \pi$
C) 3
D) $\frac { 3 \pi } { 2 }$

Name: Give the amplitude or period as requested. -Amplitude of $y = - 3 \cos \frac { 1 } { 2 } x$ A) $\frac { \pi } { 3 }$ B) $4 \pi$ C) 3 D) $\frac { 3 \pi } { 2 }$
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Question

Quizplus · Accepted Answer

The amplitude of a trigonometric function like $y = -3\cos\frac{1}{2}x$ is given by the absolute value of the coefficient of the cosine function, which in this case is $|-3| = 3$.

Give the Amplitude or Period as Requested y=−3cos⁡12xy = - 3 \cos \frac { 1 } { 2 } xy=−3cos21​x

Give the Amplitude or Period as Requested $y = - 3 \cos \frac { 1 } { 2 } x$