PLEASE HELP!!
I JUST NEED THE QUESTION 3B!!

h=15t

Step-by-step explanation:

h=height

t=years

so the tree grows 15ft every x(t) amount of years

Function here describes y(x), x is the input, y is the output.

A single input or x-value can only yield 1 output or y-value otherwise it is NOT a function.

For example if x = 4 but y could be 2 or -2, Then this is not a y(x) function.
THis can happen when y has an exponent.
x = y^2  > 4 = 2^2 = (-2)^2

Therefore answer is b) x = y^2-4y+2