Select all of the following true statements if R = real numbers, N = natural numbers, and W = {0, 1, 2, ...}.

-5 W
R W
{0, 1, 2, ...} W
N
9 W
W N

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.