List 5 numbers, so that
- the first number is 1,
- the average of the first two numbers is 2,
- the average of the first 3 numbers is 3,
- the average of the first 4 numbers is 4,
- and the average of all 5 numbers is 5?

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.