Is P inside C (coordinate geometry)

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kevincanspain: GMAT Instructor; Posts: 613; Joined: Thu Mar 22, 2007 6:17 am; Location: madrid; Thanked: 171 times; Followed by:64 members; GMAT Score:790

Is P inside C (coordinate geometry)

by kevincanspain » Thu Jun 02, 2016 12:30 am

If C is a circle in the xy-plane with center (4,5) , and point P(a,b) is not on C , is P inside C?

(1) (a,-b) is inside C.
(2) (-a,b) is inside C.

Kevin Armstrong
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