A woman wants to make a 6 inch wide copy of a drawing that is 10 inches wide. On the photocopier, what percent setting should she use to make a copy this size?

60%

6/10 = .6

convert into percent by moving the decimal to the right twice to get 60%

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.