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Coordinate geometry, circles

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by Matt@VeritasPrep » Sun Aug 03, 2014 4:45 pm
Brent@GMATPrepNow wrote:Ah, good call about the distance formula vs the circle equation.

I think you system-solving solution should come with a "do not try this at home" warning :-)

Cheers,
Brent
My answers, excessive? Perish the thought! :p

I agree that the geometric solutions are much better if you remember them, or can think them up. But I've been in pinches on plenty of math tests where I've had to use brute force, so it's nice to know how to grind out an answer (if you must).
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by Brent@GMATPrepNow » Sun Aug 03, 2014 5:41 pm
Matt@VeritasPrep wrote:
Brent@GMATPrepNow wrote:Ah, good call about the distance formula vs the circle equation.

I think you system-solving solution should come with a "do not try this at home" warning :-)

Cheers,
Brent
My answers, excessive? Perish the thought! :p

I agree that the geometric solutions are much better if you remember them, or can think them up. But I've been in pinches on plenty of math tests where I've had to use brute force, so it's nice to know how to grind out an answer (if you must).
Agreed!

Cheers,
Brent
Brent Hanneson - Creator of GMATPrepNow.com
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