Aaron Goh's answer to Emily Lee's Secondary 3 A Maths question.
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iv) if you use differentiation, you can find out the maximum point when dy/dx = 0. Alternatively, solve it by completing the square in the form y = a(x-h)+b.
*Common mistake: note that in this case since k is given in the question, it is not y=a(x-h)+k, since the constants are not the same as the one given in the question; b has to be found via your working.
iv) if you use differentiation, you can find out the maximum point when dy/dx = 0. Alternatively, solve it by completing the square in the form y = a(x-h)+b.
*Common mistake: note that in this case since k is given in the question, it is not y=a(x-h)+k, since the constants are not the same as the one given in the question; b has to be found via your working.
Date Posted:
7 years ago
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