document.write( "Question 1099730: Find the equation of the line tangent to the circle x2 + y2 = 25 at point (3,4) \n" ); document.write( "
Algebra.Com's Answer #714188 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! y^2=25-x^2 \n" ); document.write( "2ydy/dx=-2x \n" ); document.write( "dy/dx=-x/y\r \n" ); document.write( "\n" ); document.write( "when x=3, y'=-3/4 \n" ); document.write( "use point slope formula y-y1=m(x-x1), m slope and (x1, y1) point. \n" ); document.write( "y-4=(-3/4)(x-3) \n" ); document.write( "y=(-3/4)x+6.25 \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |