document.write( "Question 1005267: Find the equation of any line that you like but must be perpendicular to the line whose x-intercept is 1 and y-intercept is is 1/2. \n" ); document.write( "
Algebra.Com's Answer #621577 by Cromlix(4381)![]() ![]() You can put this solution on YOUR website! Hi there, \n" ); document.write( "If the line cuts the y axis at 1/2 \n" ); document.write( "and the x axis at 1 \n" ); document.write( "Then the gradient = -1/2 \n" ); document.write( "Mid point of (1,0) and (0, 1/2) \n" ); document.write( "= (1/2, 1/4) \n" ); document.write( "Perpendicular's gradient = 2 \n" ); document.write( "Lines that are perpendicular \n" ); document.write( "to one another have gradients that \n" ); document.write( "multiply together to give -1 \n" ); document.write( "m1 x m2 = -1 \n" ); document.write( "-1/2 x 2 = -1 \n" ); document.write( "Using the equation of the line \n" ); document.write( "y - b = m(x - a) \n" ); document.write( "with m = 2 \n" ); document.write( "(a,b) = (1/2, 1/4) \n" ); document.write( "y - 1/4 = 2(x - 1/2) \n" ); document.write( "y - 1/4 = 2x - 1 \n" ); document.write( "y = -2x - 1 + 1/4 \n" ); document.write( "y = -2x -3/4 \n" ); document.write( "or multiply through by 4 \n" ); document.write( "4y = -8x - 3 \n" ); document.write( "Hope this helps :-) \n" ); document.write( " |