# Circle

From the equation of a circle:

Calculate the coordinates of the center of the circle S[x

$2x2 +2y2 +20x -20y +68 = 0$

Calculate the coordinates of the center of the circle S[x

_{0}, y_{0}] and radius of the circle r.**Result****Leave us a comment of this math problem and its solution (i.e. if it is still somewhat unclear...):**

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For Basic calculations in analytic geometry is helpful line slope calculator. From coordinates of two points in the plane it calculate slope, normal and parametric line equation(s), slope, directional angle, direction vector, the length of segment, intersections the coordinate axes etc.

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