Which of the numbers below is less than -4.2? Select all that apply. A) -9\2
B) – 5.6
C) - 3.5
D) -2/3
E) 3.5

The answer would be 13.5 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.