1. the class limit is the smallest value within the class and the class limit is the largest value within the class. 2. the upper minimum relative maximum absolute lower class limit is the smallest value within the class and the lower upper maximum absolute minimum relative class limit is the largest value within the class.

Add up all the sides

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.