Elon has misplaced the sales contract for his car and cannot remember the amount he originally financed. He does know that the add-on interest rate was % and the loan required a total of 36 monthly payments of $ 314.76 each. How much did Elon borrow?

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.