NumericalModerate1.5 marks
8(b)
The vertices of a DABC are A(3, 8), B(–l, 2) and C(6, –6), Find:
Slope of BC.
Topic: Slope and equation of a line
Previous-year question practice database
Answer
Exam answer
B(−1, 2) C(6, −6)
Slope of BC:
m = (−6 − 2)/(6 − (−1))
= −8/7
Answer:
Slope of BC = −8/7.
Explanation
Use the slope formula m = (y₂ − y₁)/(x₂ − x₁) with B(−1,2) and C(6,−6).
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