Mario baked cookies for the class party. The students ate
3
4
of what Mario brought.
The students on his bus ate
1
3
of what was left.
Mario had 6 when he got home.
How many cookies did Mario bake?

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.