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

the function is : f(x) = -3x+4

Explanation:

hello :

9x + 3y = 12 calculate y : 3y = -9x+12

divid by : 3 y = -3x+4

the function is : f(x) = -3x+4

Answer 2

y=-3x+4

Explanation:

In function notation we have y in one side and the x (like free variable) and other numbers in the other side.

9x+3y=12

3y=12-9x

3y=-9x+12

y=(-9x+12)/3

y=-3x+4