The model represents the equation - 3 =10. Which is the value of x in the equation x - 3 = 10?

X= 13.
You isolate x by adding 3 on both sides of the equation. Once you do that, you are left with x=13.

hope this helps!!

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.