four students are playing the same video game their scores for the first three levels are added together to see if the student has enough points to move on to round 2. Kim 7.18, 6.55 6.45. Sally 5.49, 6.18, 5.72. Tina 8.02, 7.94,8.38. Zoey 8.64, 8.32, 8.13

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.

You just divide and you will find x