Which pair shows equivalent expressions? 2(2/5x+2) = 2 2/5x+1

2(2/5x+2) = 4/5x+4

2(2/5x+4) = 4/5x+2

2(2/5x+4) = 2 2/5x+8

The correct answer would be the function g(x) increased at a faster rate

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.