In a Math 3 class, a group can complete a worksheet together in 20 minutes. Otis can complete the worksheet alone in 30 minutes. How long would it take Eddie to complete the worksheet by himself? A)20 minutes
B)30 minutes
C)50 minutes
D)60 minutes

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.