Pre-Algebra Examples

,
Use the slope-intercept form to find the slope.
The slope-intercept form is , where is the slope and is the y-intercept.
Using the slope-intercept form, the slope is .
The equation of a perpendicular line to must have a slope that is the negative reciprocal of the original slope.
Simplify to find the slope of the perpendicular line.
Divide by .
Multiply by .
Find the equation of the perpendicular line using the point-slope formula.
Using the point-slope form , plug in , , and .
Solve for .
Subtract from .
Simplify .
Subtract from .
Rewrite as .