Which is an equation of a direct proportion? y=13x−2 y=3x y=−3x+4 y=−3x

I’m pretty sure it’s i think : /

11/2.2 = 5 inches for the length 8.5/2.2= 3.86 inches for the width

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.