Center, Radius, PointPro Problems > Math > Geometry > Analytic Geometry > Circles
Center, Radius, Point
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A circle is tangent to the lines y = 2x + 1 and 2y = -x + 1. Its center lies on the x - axis. What are the possible equations of the circle?
The center of a circle lies at the focus of a parabola. The circle is tangent to the parabola's directrix. The circle and the parabola intersect at the points (-7, 6) and (5,6). Find all possible centers of the circle.
Two circles intersect at the points (-3 5) and (-3, -3). The radius of one circle is 4 units, and the distance between the centers is 5 units. Find the radius of the other circle.