document.write( "Question 572049: Write the standard form of the equation of the circle with the given center (-2,-4) and radius of 6 \n" ); document.write( "
Algebra.Com's Answer #368274 by Theo(13342)\"\" \"About 
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standard form of equation of a circle is:
\n" ); document.write( "(x-h)^2 + (x-k)^2 = r^2
\n" ); document.write( "(h,k) is the center of the circle.
\n" ); document.write( "r is the radius.
\n" ); document.write( "in your equation, this becomes:
\n" ); document.write( "(x+2)^2 + (y+4)^2 = 36
\n" ); document.write( "to graph your equation, solve for y to get:
\n" ); document.write( "y = +/- sqrt(36 - (x+2)^2) - 4
\n" ); document.write( "that graph is shown below:
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