Math

QuestionRewrite the equation 9x+3y=129 x + 3 y = 12 in function notation with xx as the independent variable.

Studdy Solution

STEP 1

Assumptions1. The given function is 9x+3y=129x +3y =12 . xx is the independent variable3. We want to express the function in terms of xx, i.e., y=f(x)y = f(x)

STEP 2

First, we need to isolate yy on one side of the equation. We can do this by subtracting 9x9x from both sides of the equation.
y=129xy =12 -9x

STEP 3

Next, we divide both sides of the equation by 33 to solve for yy.
y=129x3y = \frac{12 -9x}{3}

STEP 4

implify the right side of the equation by dividing each term by 33.
y=43xy =4 -3x

STEP 5

Now that we have yy in terms of xx, we can write this using function notation. In function notation, yy is replaced by f(x)f(x).
f(x)=43xf(x) =4 -3xSo, the function 9x+3y=129x +3y =12 can be written as f(x)=43xf(x) =4 -3x in function notation.

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