Question
The equation for fand the graph of g are given. How do the period and the amplitude of the functions compare? f(x)=2cos((pi )/(2)x) A. The amplitudes are the same, but the period of fis half as long as the period of g. B. The amplitudes are the same, but the period of fis twice as long as the period of g C. The periods are the same, but the amplitude of fishalf as great as the amplitude of g D. The periods are the same, but the amplitude of fis twice as great as the amplitude of g
Answer
4.3
(291 Votes)
Sienna
Master · Tutor for 5 years
Answer
Since we don't have information about function
, we cannot definitively answer this question. However, based on our calculations for function
, we can say that the amplitude of
is 2 and the period of
is 4.
Explanation
## Step 1: First, we need to identify the amplitude and period of function
. The general form of a cosine function is \( f(x) = A \cos(Bx) \), where
is the amplitude and
is the period.## Step 2: From the given function \( f(x) = 2 \cos\left(\frac{\pi}{2}x\right) \), we can see that
and
. Therefore, the amplitude of
is 2 and the period of
is
.## Step 3: Without the equation or the graph of function
, we cannot directly compare the amplitude and period of
and
. However, based on the given options, we can make assumptions about the amplitude and period of
and see which option is consistent with our calculations for
.