Q. A circle has radius 10 units and passes through the point (5,−16). The x-axis is a tangent to the circle. Find the possible equations of the circle.
Find Center: Determine the center of the circle using the given information that the x-axis is a tangent to the circle and the radius is 10 units.
Distance Formula: Use the distance formula to find the x-coordinate of the center using the point (5,−16) which lies on the circle.
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