2022Q1(iv)Equation of a Line

MCQEasy1 mark

1

Choose the correct answers to the questions from the given options. (Do not copy the questions, write the correct answers only.)

If two lines are perpendicular to one another then the relation between their slopes m₁ and m₂ is:

Topic: Slope and equation of a line

Previous-year question practice database

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Pick an option and check your answer. The full worked answer is below either way.

Choose an answer

m₁ = m₂m₁ = 1/m₂m₁ = –m₂m₁ × m₂ = –1

Answer

Exam answer

(d) m₁m₂ = −1

Explanation

For two non-vertical perpendicular lines, the product of their slopes is −1.

In words

m₁m₂ = −1

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