document.write( "Question 770886: Find the equation of the tangent to the circle with centre: (3,-1) at (-1,1) \n" ); document.write( "
Algebra.Com's Answer #471048 by tommyt3rd(5050)![]() ![]() You can put this solution on YOUR website! the slope between (-1,1) and (3,-1) is\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "m=(-1-1)/(3-(-1))=-1/2\r \n" ); document.write( "\n" ); document.write( "which must be perpendicular to our line's slope. Therefore using\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "we have\r \n" ); document.write( "\n" ); document.write( " |