LandyWu's answer to Chelsia's Secondary 3 E Maths Singapore question.
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I add a point D for easy reference.
Gradient 1/3 is solve from the Gradient -3 by pendicular relationship.
Solve 2 euqation by simultaneous method to get intersection point D.
Hope it help u out. All the best!!!
Gradient 1/3 is solve from the Gradient -3 by pendicular relationship.
Solve 2 euqation by simultaneous method to get intersection point D.
Hope it help u out. All the best!!!
Date Posted:
5 years ago
what if dont add 'd'?
Not necessarily must be D, u can just say is a perpendicular meet up point.
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