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)\"\" \"About 
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 :-)
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