The table shows the height of a plant as it grows.

Question

What equation in point-slope form gives the plant’s height at any time?
time (months) Plant Height (cm)
2 14
4 28
6 42
8 56


56

Answer 1

(y - 14) = 7 (x - 2)

Answer 2

y=7x

Answer 3

So I wonder which one is right ??