It would take an apprentice house painter 1.5h longer than his supervisor to paint an apartment. if they work together they can complete the job in 4 hr. about how long would it take the apprentice to complete the job working alone?

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.

The answer should be 5.