determine the amplitude of the function ( y = -\frac{1}{2}cos x ).\na. -1\nc. ( \frac{1}{2} )\nb. (…
determine the amplitude of the function ( y = -\frac{1}{2}cos x ).\na. -1\nc. ( \frac{1}{2} )\nb. ( -\frac{1}{2} )\nd. 2
Answer
Answer:
C. $\frac{1}{2}$
Explanation:
Step 1: Identify the amplitude formula for cosine functions
The amplitude of $y = A\cos x$ is $|A|$.
Step 2: Determine the coefficient ( A ) in the given function
Here, ( A = -\frac{1}{2} ).
Step 3: Calculate the absolute value of ( A )
( \left| -\frac{1}{2} \right| = \frac{1}{2} ).