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Question
If the line joining the points (-2, 6) and (4,8) is perpendicular to another line joining the points (8, 12) and (x, 24), then the value of x is
If the line joining the points (-2, 6) and (4,8) is perpendicular to another line joining the points (8, 12) and (x, 24), then the value of x is
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Solution
The correct option is D 4
Product of slopes =−1⇒13×(12x−8)=−1⇒x=4
4
Product of slopes =−1⇒13×(12x−8)=−1⇒x=4
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