2 T carni
ticke
1 Brothers Bruce and Jack are
looking for books at the library.
Bruce wants to get 4 more than
twice the number of books Jack
checks out. Bruce and Jack will check
out a total of 25 books. Let x be the
number of books Bruce checks out
and y be the number of books
Jack
checks out.
What are the system of equation?

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.