jackson has 100 meters of fencing and wants to enclose a rectangular region of his farm. Suppose y is one of the lengths of the rectangle, and is parallel with an existing wall, so he only has to build 3 sides. The other length of the rectangle is x and y > x

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.