Straight-Line Equations
Posted: March 16th, 2011, 10:25 pmSlope-Intercept Form
Parallel and Perpendicular Lines
two lines...
if the slopes are equal, they are parallel
if they are opposite reciprocals, they are perpendicular
if they are equal AND the y-int are equal, they are the same line
Parallel and Perpendicular Lines
two lines...
if the slopes are equal, they are parallel
if they are opposite reciprocals, they are perpendicular
if they are equal AND the y-int are equal, they are the same line