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write the equation of the circle

0 votes
center: (6,6)
radius: (-4,3)
....help?
asked Mar 18, 2014 in GEOMETRY by rockstar Apprentice

1 Answer

0 votes

The general form of the equation for a circle whose center at (h, k ) and radius  is r : image.

First to find the length of the radius (r).

Let assume that the coordinates given for radius are the coordinates of the end-point of the radius.

Since the radius of a circle begins at the center of the circle.

So, find the distance between the center (6, 6) and the end-point (-4, 3) using the distance formula:

image

image

image

image

image

The equation of the circle is image

image

 

answered Apr 9, 2014 by ashokavf Scholar

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