document.write( "Question 1060075: Solve the exercise by solving a system of equations. \r
\n" ); document.write( "\n" ); document.write( "Find the center and radius of the circle whose graph passes through the points
\n" ); document.write( "(−5, −1),
\n" ); document.write( "
\n" ); document.write( "(−11, −9),
\n" ); document.write( " and
\n" ); document.write( "(−4, −8).
\n" ); document.write( " (Hint: Use the equation
\n" ); document.write( "x2 + y2 + ax + by + c = 0.) \n" ); document.write( "

Algebra.Com's Answer #675111 by MathTherapy(10552) $\"\"$ $\"About$

You can put this solution on YOUR website!
Solve the exercise by solving a system of equations. \r
\n" ); document.write( "\n" ); document.write( "Find the center and radius of the circle whose graph passes through the points
\n" ); document.write( "(−5, −1),
\n" ); document.write( "
\n" ); document.write( "(−11, −9),
\n" ); document.write( " and
\n" ); document.write( "(−4, −8).
\n" ); document.write( " (Hint: Use the equation
\n" ); document.write( "x2 + y2 + ax + by + c = 0.)
\n" ); document.write( "

It's beyond me why you're told to use the STANDARD form of the equation of a circle to find the center and radius. It's TOTALLY RIDICULOUS and only leads 
\n" );
document.write( "to a lot more work. When you use that form, and you determine, a, b, and c, you still have to complete the square in order to determine the center and radius.
\n" );
document.write( "This makes absolutely no sense. Anyway, if that's the way you have to do it, then do so. You should get: \r
\n" );
document.write( "\n" );
document.write( "I recommend, however, that you use the center-radius form of the equation of a circle: . It'll be much, much easier for you.
\n" );
document.write( "Using this form, you should get: , or the equation: .
\n" );
document.write( "I hope you IGNORED the RUBBISH (GARBAGE) the other person posted! \n" );
document.write( "

\n" );