Which step is the same in the construction of a perpendicular line through a point on a line and the construction of a perpendicular line through a point off a line? Create only one arc on the original line. Create two arcs on the original line. Place the compass on only one point off the original line. Place the compass on only one point on the original line.

Is there more to the question?

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.