Clement Cheng's answer to Zoe's Secondary 4 E Maths question.
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Hope this helps.
Date Posted:
6 years ago
For the area of triangle ABC, actually it's just 0.5 x 6 x 3.5 = 10.5
Thank you! But i just don't get why for the gradient of AB i can't take 2-(-1) instead of what you did, which is -1-2 because the gradient i get is a negative
Yes you can do that too, but then the denominator will be 0 - (-4) and you should end up with the same answer.
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