document.write( "Question 660746: Write the equation of the circle in standard form. Find the center , radius, intercepts, and graph the circle.\r
\n" ); document.write( "\n" ); document.write( "x^2 + y^2 - 8x + 14y = -29
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Algebra.Com's Answer #411331 by stanbon(75887)\"\" \"About 
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Find the center , radius, intercepts, and graph the circle.
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\n" ); document.write( "Complete the square on the x and on the y terms:
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\n" ); document.write( "x^2 + y^2 - 8x + 14y = -29
\n" ); document.write( "(x^2 - 8x + 16)) + (y^2 + 14y + 49) = -29 + 16 + 49
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\n" ); document.write( "Factor:
\n" ); document.write( "(x-4)^2 + (y+7)^2 = 36
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\n" ); document.write( "Center: (4,-7)
\n" ); document.write( "Radius: sqrt(36) = 6
\n" ); document.write( "Intercepts:
\n" ); document.write( "x-intercepts: Let y = 0, then (x-4)^2 + 49 = 36 ;
\n" ); document.write( "then (x-4)^2 = -13
\n" ); document.write( "Therefore: no x-intercepts
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\n" ); document.write( "y-intercepts: let x = 0, then (-4)^2 + (y+7)^2 = 36,
\n" ); document.write( "then (y+7)^2 = 20
\n" ); document.write( "then y+7 = 2sqrt(5) or y+7 = -2sqrt(5)
\n" ); document.write( "y = -7+2sqrt(5) or y = -7-2sqrt(5)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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