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Find the slope of the line perpendicular to AB if : A = (3, −2) and B = (−1, 2)

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Question

Find the slope of the line perpendicular to AB if : A = (3, −2) and B = (−1, 2)

Sum
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Solution

Slope of AB = `(2 + 2)/(-1 - 3)`

Slope of AB = `4/(-4)`

Slope of AB = –1

Slope of the line perpendicular to AB = `(-1)/"Slope of AB"`

Slope of the line perpendicular to AB = `(-1)/(-1)`

Slope of the line perpendicular to AB = 1

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Chapter 14: Equation of a Line - Exercise 14 (B) [Page 190]

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Selina Concise Mathematics [English] Class 10 ICSE
Chapter 14 Equation of a Line
Exercise 14 (B) | Q 5. (ii) | Page 190
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