If (7, m) is on a circle with center C(−2, 2) and radius 9, what is the value of m?

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01-05-2016
Mathematics

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If (7, m) is on a circle with center C(−2, 2) and radius 9, what is the value of m?

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ionarevamp ionarevamp · Answer 1 · 2016-05-01T21:28:41+02:00

ionarevamp ionarevamp

01-05-2016

First thing I did was check the distance between the point and the center of the circle on the x-axis, because that was the information already given. Turns out that 7 - (-2) = 9, and so m is equal to the y-value of the center of the circle.

m = 2

Hope that helps!

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