Months (x)
1
2
3
4
Money in
Bank (y)
25
33
41
49
57
Which equation represents the table?

I'm pretty sure it's b). i try drawing the functions out and b is the one that stands out or isnt a "line"

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.