Type the missing number in this sequence:
1,
2,
4,
16

8, because
1 x 2 is 2
2x2 is 4
4x 2 is 8
8 x 2 is 16

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.