A sunflower is 3 inches tall at week 0 and grows 2 inches each week. Which function (s) shown below can be used to determine the height, f (n), of the sunflower in n weeks?

Simple ... set up your equation ...

f (n) = mx+b

It's 3 inches tall ... and grows 2 inches each week.

Make your equation ... f (n) = 2x+3

To make sure it works ... plug in some numbers ...

Example: x=0

f (n) = 2 (0) + 3

f (n) = 3

Thus, you know your equation works.