Finding the Center and Radius - High School Math
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Find the center and radius of the circle defined by the equation:
Find the center and radius of the circle defined by the equation:
The equation of a circle is: 
where 
is the radius and 
is the center.
In this problem, the equation is already in the format required to determine center and radius. To find the 
-coordinate of the center, we must find the value of 
that makes 
equal to 0, which is 3. We do the same to find the y-coordinate of the center and find that 
. To find the radius we take the square root of the constant on the right side of the equation which is 6.
The equation of a circle is:
In this problem, the equation is already in the format required to determine center and radius. To find the
Compare your answer with the correct one above
Find the center and radius of the circle defined by the equation:
Find the center and radius of the circle defined by the equation:
The equation of a circle is: 
where 
is the radius and 
is the center.
In this problem, the equation is already in the format required to determine center and radius. To find the 
-coordinate of the center, we must find the value of 
that makes 
equal to 
, which is 
. We do the same to find the y-coordinate of the center and find that 
. To find the radius we take the square root of the constant on the right side of the equation which is 10.
The equation of a circle is:
In this problem, the equation is already in the format required to determine center and radius. To find the
Compare your answer with the correct one above