Thread: Center of Two Circles

Find an equation of the line containing
the centers of two circles x^2 + y^2 - 4x + 6y + 4 = 0
and x^2 + y^2 + 6x + 4y + 9 = 0

Hello,

Originally Posted by magentarita

Find an equation of the line containing
the centers of two circles x^2 + y^2 - 4x + 6y + 4 = 0
and x^2 + y^2 + 6x + 4y + 9 = 0

1/ find the coordinates of both centers
2/ solve for a and b in y=ax+b, by substituting the previous coordinates into x and y.

Originally Posted by Moo

Hello,

1/ find the coordinates of both centers
2/ solve for a and b in y=ax+b, by substituting the previous coordinates into x and y.

I'll try your tips and get back to you.