Algebra 1 Lesson 02-04b: Slope of Perpendicular Lines

We will prove that the slopes of perpendicular lines are opposite reciprocals. Then we will use the property to solve perpendicular lines problem.

Relevant videos:
Algebra 1 Lesson 02-01a: Slope-Intercept Form of Linear Equation -    • Algebra 1 Lesson 02-01a: Slope-Interc...  
Algebra 1 Lesson 02-02: Point-Slope Form of Linear Equation -    • Algebra 1 Lesson 02-02: Point-Slope F...  
Algebra 1 Lesson 02-04a: Slope of Parallel Lines -    • Algebra 1 Lesson 02-04a: Slope of Par...  

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   • Algebra 1  
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