Question

consider the function represented by 9x+3y=12 with x as the independent variable. how can this function be written using function notation?

Answer 1

take out y from the equation and put it equal to f(x)
for example
3y=12-9x
y=(12-9x)/3
f(x)=(12-9x)/3

Answer 2

On the bottom of the question is says f(x)=________x+4 so I don't really understand still what would go in the blank