Staff Review
This lesson explains how to find the equation of a line that is parallel to the line that passes through two points and goes through a given point. It also explains that two parallel lines have the same slope, and how to determine if two lines are parallel by comparing their slopes by putting them in slope-intercept form. Finally, this lesson explains that perpendicular lines have opposite reciprocal slopes, and it goes through several example problems determining if two lines are perpendicular.