The table shows the height of a plant as it grows. Which equation in point-slope form form gives the plants height at any time?

Time | Plant Height
3 | 21
5 | 35
7 | 49
9 | 63

A) y-21=7/2 (x-3)
B) y-21=7 (x-3)
C) y-3=7/2 (x-21)
D) This relationship is non-linear

3 answers

sure looks to me like y=7x
so, which choice would that be?
Billy Bob
Is it B? B) y-21=7 (x-3)