Write as a Function of x 4x-8y=-8

$4 x - 8 y = - 8$

Step 1

Subtract $4 x$ from both sides of the equation.

$- 8 y = - 8 - 4 x$

Step 2

Divide each term in $- 8 y = - 8 - 4 x$ by $- 8$ and simplify.

Divide each term in $- 8 y = - 8 - 4 x$ by $- 8$ .

$\frac{- 8 y}{- 8} = \frac{- 8}{- 8} + \frac{- 4 x}{- 8}$

Simplify the left side.

Cancel the common factor of $- 8$ .

Cancel the common factor.

$\frac{- 8 y}{- 8} = \frac{- 8}{- 8} + \frac{- 4 x}{- 8}$

Divide $y$ by $1$ .

$y = \frac{- 8}{- 8} + \frac{- 4 x}{- 8}$

Simplify the right side.

Simplify each term.

Divide $- 8$ by $- 8$ .

$y = 1 + \frac{- 4 x}{- 8}$

Cancel the common factor of $- 4$ and $- 8$ .

Factor $- 4$ out of $- 4 x$ .

$y = 1 + \frac{- 4 (x)}{- 8}$

Cancel the common factors.

Factor $- 4$ out of $- 8$ .

$y = 1 + \frac{- 4 (x)}{- 4 (2)}$

Cancel the common factor.

$y = 1 + \frac{- 4 x}{- 4 \cdot 2}$

Rewrite the expression.

$y = 1 + \frac{x}{2}$

Step 3

To rewrite as a function of $x$ , write the equation so that $y$ is by itself on one side of the equal sign and an expression involving only $x$ is on the other side.

$f (x) = 1 + \frac{x}{2}$

Write as a Function of x 4x-8y=-8

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