The volunteers collect 15,682 cans at entrance A; 18,940 cans at entrance B; 16,114 cans at entrance C; and 12,468 cans at entrance D. Did they collect more or fewer cans than desired? How many more or fewer?

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.