Javier watched 2/5 of a movie. The entire length of the movie is x hours. He watched a total of 1 1/6 hours of the movie. To determine the total length of the movie, Javier wrote the equation shown below.

The correct equation would be 2/5x=1 1/6

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.

Ithink it’s d as the answer.