How to Tell If Two Lines Are Perpendicular - Algebra

Learn to determine if two given lines are perpendicular by analyzing their slopes in this 11-minute algebra tutorial. Work through the specific problem of whether the lines 2y = 3x – 6 and 2x + 3y = –6 are perpendicular by converting equations to slope-intercept form and finding each line's slope. Master the fundamental relationship between slopes of perpendicular lines and discover common mistakes students make when working with slope problems. Develop essential skills in writing equations of lines in slope-intercept form, calculating slopes from linear equations, and applying the perpendicular line slope relationship. Perfect your understanding of these core algebraic concepts that are essential for Algebra 1, Algebra 2, Geometry courses, and standardized test preparation including SAT, ACT, and GED exams.