Eric Nicholas K's answer to A math god's Secondary 3 A Maths Singapore question.
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You can also use reasoning from the point where y2 = 1 - (n - 4)2.
If the line does not meet the curve, y2 < 0 (because this will not get you any value for y so this represents zero points of intersection).
This means that 1 - (n - 4)2 < 0 and you will be solving this inequality for the range of values of n.
Similar argument applies for the other two cases.
If the line does not meet the curve, y2 < 0 (because this will not get you any value for y so this represents zero points of intersection).
This means that 1 - (n - 4)2 < 0 and you will be solving this inequality for the range of values of n.
Similar argument applies for the other two cases.
Date Posted:
5 years ago
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