A function of x contains the five ordered pairs of the form (x, y). Four of these points are

given below.

(-2, 7), (0, 3), (1, -4), (5, -2)

Which ordered pair could represent the fifth point?

A. (1, 9)

B. (5, 7)

C. (3, -4)

D. (0, -8)
Please describe how you got the answer! :)

Period is the time it takes for one “cycle” to complete. in the parent sine function, period is 2*pi since sin(0) = 0, sin(pi/2) = 1, sin(pi) = 0, sin(3pi/2) = -1, and sin(2pi) = 0. at that point, the sequence repeats itself. i’m not sure if your graph is similar to the sine function since you didn’t provide a picture, but you can find the period by looking at a graph.