Math141 Ch1.5 More on Slope

Feeling a little sloped over? 📐 This lesson works through the Chapter 1.5 guided notes: parallel and perpendicular slopes, writing equations of lines in point-slope and slope-intercept form, and an introduction to average rate of change. In this video: Parallel lines have the same slope. Perpendicular lines have negative reciprocal slopes. Slopes of horizontal and vertical lines (zero vs. undefined) Writing equations of parallel and perpendicular lines Finding a perpendicular line from x- and y-intercepts Average rate of change and the slope of a secant line Chapters: 0:00 Intro & key vocabulary 1:11 Parallel & perpendicular slopes table 2:33 Equation of a parallel line 3:53 Equations of perpendicular lines 6:18 Perpendicular to a vertical line 7:39 Perpendicular line from intercepts 10:00 Average rate of change Why are parallel lines so sad? They have so much in common, but they’ll never meet. 💔 (Perpendicular lines, on the other hand, are always right on time. ⏰) 👍 If this helped, like and subscribe for more videos from Carmen Does Math! #Precalculus #Math141 #Slope #ParallelLines #PerpendicularLines #PointSlopeForm #SlopeInterceptForm #AverageRateOfChange #Algebra #MathHelp #CarmenDoesMath #CollegeMath