Use the spaces between the questions to calculate your answers. CIRCLE the answer to each question to avoid any misunderstanding. If submitting using plain paper, write the question number and then show your calculations and answer for the question. 1. At this point in time (the beginning of November), what is the seasonal forecast for November

These are the multiples of 15 but what you are probably asking or what are the factors of 15

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.