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10 cards from this deck
Set of all points equidistant from a fixed centre
(x−h)2+(y−k)2=r2(x-h)^2+(y-k)^2=r^2(x−h)2+(y−k)2=r2
Centre of the circle
Radius of the circle
Coordinates of any point on the circle
x2+y2−2hx−2ky+h2+k2−r2=0x^2+y^2-2hx-2ky+h^2+k^2-r^2=0x2+y2−2hx−2ky+h2+k2−r2=0
Substitute coordinates into equation and check if true
Fixed distance from centre to any point on circle
(x−3)2+(y+2)2=25(x-3)^2+(y+2)^2=25(x−3)2+(y+2)2=25
Verify points on circle; solve line-circle intersections
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