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

Subtract from both sides of the equation.

Multiply each term in by

Multiply each term in by .

Multiply .

Multiply by .

Multiply by .

Simplify .

Simplify each term.

Multiply by .

Multiply by .

Reorder and .

Using the slope-intercept form, the slope is .

All lines that are parallel to have the same slope of .

Find the Slope of a Parallel Line 3x-y=1