Use the graph below to answer the question that follows:

what trigonometric function represents the graph? (6 points)
select one:
a. f(x) = −3 sin(x − pi over 2 )
b. f(x) = −3 cos(x − pi over 2 )
c. f(x) = 3 cos(x − pi over 2 )
d. f(x) = 3 sin(x − pi over 2 )

The  trigonometric function which represents the graph is:

         c)  

From the graph we may observe that when x=π/2 we have the value of the function  f(x)= 3

Hence, we will check in which this point hold true:

a)

Now, when x=π/2 we have:

Hence, option: a is incorrect.

b)

Now, when x=π/2 we have:

Hence, option: b is incorrect.

d)

Now, when x=π/2 we have:

Hence, option: d is incorrect.

c)

Now, when x=π/2 we have:

Similarly we will see that the value of this function matches all the points that on the graph.

        Hence, option: c is correct.

answer

point o.

step-by-step explanation: