document.write( "Question 1126134: Find the equation of a line tangent to the circle x^2+(y−3)^2=34 at the point (5, 0).
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Algebra.Com's Answer #742464 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Find the equation of a line tangent to the circle x^2+(y-3)^2=34 at the point (5,0). \n" ); document.write( "--------- \n" ); document.write( "x^2 + (y-3)^2=34 \n" ); document.write( "-- \n" ); document.write( "2xdx + 2(y-3)dy = 0 \n" ); document.write( "dy/dx = -x/(y-3) --> the slope at any point on the circle. \n" ); document.write( "@ (5,0), slope m = 5/3 \n" ); document.write( "-------- \n" ); document.write( "y = (5/3)*(x-5) is the tangent line. \n" ); document.write( "============== \n" ); document.write( "Without finding the derivative: \n" ); document.write( "You can find the slope of the line from the center to the (5,0). \n" ); document.write( "The slope of the tangent line is the negative inverse. \n" ); document.write( "etc. \n" ); document.write( " |