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Mathematics 19 Online
OpenStudy (anonymous):

Find the standard equation of a circle with Center lies on x-axis Tangent to x=7 and x=-13

OpenStudy (anonymous):

|dw:1338666053570:dw|

OpenStudy (anonymous):

So I just find half the distance between both point to find the center and the radius is half the distance of the whole circle right ? :3

OpenStudy (anonymous):

points*

OpenStudy (anonymous):

yes half distance from -13 to 7 is radious center is ( midpoint,0)

OpenStudy (anonymous):

midpoint is (-13+7)/2

OpenStudy (anonymous):

You're awesome!

OpenStudy (anonymous):

no you are :)

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