Question

Which function is graphed below

Answer 1

I think the answer is a. f(x)= cos(x).

Answer 2

Answer: Option 1 is correct.

Explanation:

This graph shows  that it cuts x-axis at $\frac{\pi} {2}$=0 and  at $\frac{3\pi} {2}$=0  which is satisfying the property of  cosx

Extrema of the graph at x=0, $\frac{\pi} {2}$,$2\pi$

Properties of the given graph:

maxima at x=0 and $2\pi$

minima at x=$\pi}$

x-intercept at x = $\frac{\pi} {2}$, $\frac{3\pi} {2}$

period = $2\pi$

Range [-1,1]

Domain is all real numbers.

These all properties follows by cos x function.

So, the given graph would be of cos x

Thus, Option 1 is correct.