Question 3 • AISD Geometry A Credit Recovery 2026-2027
The radius is the distance from the center (1, 1) to the point (1, 4): their x-coordinates match, and their y-coordinates differ by 3, so the radius is 3 units. The point (–2, 1) is also 3 units from the center, so it lies on the circle. The point (3, 3) is √8 units from the center, not 3, so it does not lie on the circle.
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