Eric Nicholas K's answer to Sonia's Junior College 1 H2 Maths Singapore question.

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Eric Nicholas K
Eric Nicholas K's answer
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Good evening Sonia! Here are my workings from Desmos for part b. The “-16” in the equation y2 = 4x2 - 16 is just a measure of how far off the x-intercepts of the hyperbola are from the centre.