MATHEMATICS · Single correct · A Level · Mathematics · Coordinate geometry in the (x y) plane · Coordinate geometry in the (x y) plane
Problem
The endpoints of a diameter of a circle are P(3,4) and Q(−1,6). Which of the following is the equation of the circle?
(a) (x−1)2+(y−5)2=20
(b) (x−1)2+(y−5)2=5
(c) (x+1)2+(y−5)2=5
(d) (x−1)2+(y−2)2=5