Add to both sides of the equation.

Divide each term by and simplify.

Divide each term in by .

Cancel the common factor of .

Cancel the common factor.

Divide by .

Simplify each term.

Divide by .

Cancel the common factor of and .

Factor out of .

Cancel the common factors.

Factor out of .

Cancel the common factor.

Rewrite the expression.

Move the negative in front of the fraction.

The slope-intercept form is , where is the slope and is the y-intercept.

Reorder and .

Rewrite in slope-intercept form.

Find the values of and using the form .

The slope of the line is the value of , and the y-intercept is the value of .

Slope:

y-intercept:

Slope:

y-intercept:

Choose to substitute in for to find the ordered pair.

Replace the variable with in the expression.

Simplify the result.

Simplify each term.

Divide by .

Multiply by .

Subtract from .

The final answer is .

The value at is .

Choose to substitute in for to find the ordered pair.

Replace the variable with in the expression.

Simplify the result.

Simplify each term.

Divide by .

Multiply by .

Subtract from .

The final answer is .

The value at is .

Create a table of the and values.

Graph the line using the slope and the y-intercept, or the points.

Slope:

y-intercept:

Graph -3x-9y=18