Two sides of a triangle are 9 and 15. Part A; What is the range of possibilities for the length of the third side? Part B: what is the largest possible whole number perimeter?

You have got to take a better picture. i can't you if i can't see what i'm trying to you with.. okay.

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.

Really long apparently