Aaron Goh's answer to Joanne Loi's Secondary 1 Maths question.
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Both are correct. It is just the order in which the x and y values differing.
ay+bx = bx+ay (the terms are commutative)
-4y-3x = -3x-4y is true since they are commutative.
(a=-4 and b=-3, in the first case)
Similarly, -y+2x = 2x-y, both are correct
ay+bx = bx+ay (the terms are commutative)
-4y-3x = -3x-4y is true since they are commutative.
(a=-4 and b=-3, in the first case)
Similarly, -y+2x = 2x-y, both are correct
Date Posted:
7 years ago
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