How do you find the center and radius for #5x^2 + 5y^2 +10x-30y+49=0#?
2 Answers
The center of this circle is
Explanation:
The general form of the equation of a circle is :
where
In the given exercise we are asked to transform this standard form
into the general form of the equation of a circle.
First , the coefficients of
Then, complete the square.
The equation of the circle is:
Hence, The center of this circle is
centre
radius
Explanation:
To find centre and radius we need to rearrange the equation into the form:
where;
Divide by
Now complete the square on both the
centre
radius