Find a direct relationship between x and y. x=t-7 and y=t^2+3t

The answers are 20,30,80,180,960,890,1230,4560. on the first row

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.

The answer is 9.7 cm

Idont know sorry i have noting like this