document.write( "Question 791285: Graph the circle (x-2)^2+(y+1)^2=16 and plot and label a point 'C' at the center and what are the coordinates of 'C' \n" ); document.write( "

Algebra.Com's Answer #479520 by DrBeeee(684) $\"\"$ $\"About$

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Given the circle
\n" ); document.write( "(1) $\"%28x-2%29%5E2+%2B+%28y%2B1%29%5E2+=+16\"$
\n" ); document.write( "The x coordinate of the center point C(x,y) is given by
\n" ); document.write( "(2) x-2 = 0 or
\n" ); document.write( "(3) x = 2
\n" ); document.write( "The y coordinate of C is given by
\n" ); document.write( "(4) y+1 = 0 or
\n" ); document.write( "(5) y = -1
\n" ); document.write( "The center of the circle is at the point C(2,-1)
\n" ); document.write( "The radius squared is 16, so we can get the radius from
\n" ); document.write( "(6) r^2 = 16 or
\n" ); document.write( "(7) r = 4
\n" ); document.write( "To graph you can use a graphics calculator or use a compass with point at (2,-1) and spread a \"distance\" of 4 and scribe the circle. \n" ); document.write( "

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