AnthonyRitz wrote:
GMATinsight wrote:
nailin16 wrote:
Are you sure such questions can come I forgot what does a parabola or hyperbole look like
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GMAT Club Forum mobile appHi @nalin16,
You are right about your apprehension. Parabola has been witnessed in GMAT however no incidence of Hyperbola has been witnessed so far so I also feel that that hyperbola can not be part of any question of GMAT yet.
Yes, that's true, but consider: Do you really need to know anything about *either* parabolas or hyperbolas or what they look like to solve this problem?
See, for instance, your own second solution.
No, you don't necessarily need to know what a parabola or hyperbola looks like- you just need to know how to effectively substitute the parabola in the hyperbola so as to derive points of intersection. Simple, intersection of hyperbola and parabola= substitute parabola into hyperbola. Now, you can also substitute for the x values- the GMAT just makes a bit more difficult to figure out which is faster and more effective to substitute.