Two lines are graphed on the same coordinate plane. the lines only intersect at the point (3,6).which of these systems of linear equations could represent the two lines?

a. x=3
y=6

b. x=6+y
y=3+x

c. y=3x-3
y= x-1

d. x=3+y
y=6+x

e. y= x+3
y= 2x

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.

Can u send a screenshot of it? !