document.write( "Question 1178453: the x and y-axis are tangent to a circle with radius 3 units. Write a standard equation of the circle. show on graph \n" ); document.write( "
Algebra.Com's Answer #807707 by math_helper(2461)\"\" \"About 
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The problem doesn't state which quadrant the circle is in.
\n" ); document.write( "Assuming the circle is in Q1, the center is at (3,3) and r=3 so you get:
\n" ); document.write( "\"+%28x-3%29%5E2+%2B+%28y-3%29%5E2+=+3%5E2+\"
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\n" ); document.write( "\"+%28x-3%29%5E2+%2B+%28y-3%29%5E2+=+9+\"\r
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\n" ); document.write( "If the circle is in Q2, then the center is at (-3,3) and you get:
\n" ); document.write( "\"+%28x%2B3%29%5E2+%2B+%28y-3%29%5E2+=+9+\" \r
\n" ); document.write( "\n" ); document.write( "Q3: center at (-3,-3): \"+%28x%2B3%29%5E2+%2B+%28y%2B3%29%5E2+=+9+\"
\n" ); document.write( "Q4: center at (3,-3): \"+%28x-3%29%5E2+%2B+%28y%2B3%29%5E2+=+9+\"
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