document.write( "Question 624355: write an equation of the line tangent to the given circle at the given point.
\n" ); document.write( " \"+x%5E2%2By%5E2=20+\" (-4,2)
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Algebra.Com's Answer #392665 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!
 
\n" ); document.write( "Hi,
\n" ); document.write( "(-4,2)
\n" ); document.write( "(0,0) m = 2/-4 Green Line has slope m = -1/2,
\n" ); document.write( "the Line Tangent at (-4,2) would be perpendicular to the Green with m = 2
\n" ); document.write( " y = 2x + b
\n" ); document.write( " 2 = -8 + b, y = 2x + 10
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