Consider the function represented by the equation y-6x-9=0. Which answer shows the equation written in function notation with x as the independent variable?

I'm bad at function notation.

answers:

1. f (x) = 6x+9

2. f (x) = 1/6x+3/2

3. f (y) = 1/6y+3/2

So we have a function y-6x-9=0 and we need to write it in the function notation form. First we leave y on the left side as the dependent variable and put x and the constant on the right side: y = 6x + 9. Now we rewrite y in the function notation: y = f (x) and insert that instead of y so: f (x) = 6x + 9. So the correct answer is 1.