2. Simplify the expression by combining like terms. 3y+4y+6 A. 13y
B.7y+6
C.12y+6
D.18y

B.7y+6

Add 3y and 4y together since it’s both y

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.