Pancakes's answer to Isabella's Secondary 3 A Maths Singapore question.
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First find gradient of y-4x=5. Since L1, the line passing through C is perpendicular to y-4x=5, the product of their gradients is -1. From here you can find gradient of L1 and the equation of L1. After finding equation of AB, equate equation of L1 and equation of AB to find point of intersection P.
Date Posted:
4 years ago
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