document.write( "Question 32587: I need help finding the radius and center of a circle with the following equation x squared+ y squared + 4x + 10y + 15 = 0 thanks! \n" ); document.write( "
Algebra.Com's Answer #19083 by mukhopadhyay(490)![]() ![]() ![]() You can put this solution on YOUR website! For circle (x-h)^2 + (y-k)^2 = r^2, center is (h,k) and radius is r \n" ); document.write( "x^2+y^2+4x+10y+ 15 = 0 \n" ); document.write( "=> (x+2)^2 + (y+5)^2 = -15+4+25 \n" ); document.write( "=> (x+2)^2 + (y+5)^2 = 14 \n" ); document.write( "Center is (-2,-5) and radius is sqrt(14) \n" ); document.write( " |