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Big Ideas Math Integrated I, 2016

BI

Big Ideas Math Integrated I, 2016 View details

4. Proofs with Perpendicular Lines

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Exercise 4 Page 519

What is the product of two perpendicular lines slopes?

The product of perpendicular lines slopes equals - 1.

Practice makes perfect

A conjecture is an unproven statement that is based on a number of observations. Note that, by definition, perpendicular lines create a 90^(∘) angle with each other so this is cannot be a conjecture. What we can say is that the product of the slopes of perpendicular lines equals - 1.

Subchapter links

Communicate Your Answer p.519

Monitoring Progress p.520-523

Exercises p.524-526