document.write( "Question 1004256: The lines 3x+2y-10=0 is perpendicular to 2x-By+2=0.\r
\n" ); document.write( "\n" ); document.write( "a.) Find the value of B.
\n" ); document.write( "b.) Find the distance from intersection of lines to the origin.
\n" ); document.write( "c.) Find the equation of line having a slope of 2 which passes through the intersection of two lines.
\n" ); document.write( "

Algebra.Com's Answer #620767 by Cromlix(4381)\"\" \"About 
You can put this solution on YOUR website!
Hi there,
\n" ); document.write( "First sort out equations into
\n" ); document.write( "y = mx + c form
\n" ); document.write( "3x + 2y - 10 = 0
\n" ); document.write( "2y = -3x + 10
\n" ); document.write( "y = -3/2x + 5
\n" ); document.write( "..........
\n" ); document.write( "2x - By + 2 = 0
\n" ); document.write( "-By = -2x - 2
\n" ); document.write( "By = 2x + 2
\n" ); document.write( "..........
\n" ); document.write( "Lines that are perpendicular
\n" ); document.write( "to one another have slopes that
\n" ); document.write( "multiply together to give -1
\n" ); document.write( "m1 x m2 = -1
\n" ); document.write( "-3/2 x m2 = -1
\n" ); document.write( "m2 = 2/3
\n" ); document.write( "..........
\n" ); document.write( "So B = 3
\n" ); document.write( "By = 2x + 2
\n" ); document.write( "3y = 2x + 2
\n" ); document.write( "y = 2/3x + 2/3
\n" ); document.write( "...........
\n" ); document.write( "Using:
\n" ); document.write( "3y - 2x = 2......(1)
\n" ); document.write( "2y + 3x = 10.....(2)
\n" ); document.write( "Multiply (1) by 3
\n" ); document.write( "Multiply (2) by 2
\n" ); document.write( "9y - 6x = 6......(1)
\n" ); document.write( "4y + 6x = 20.....(2)
\n" ); document.write( "Add (1) + (2)
\n" ); document.write( "13y .....= 26
\n" ); document.write( "y .......= 2
\n" ); document.write( "Substitute y = 2 into
\n" ); document.write( "2y + 3x = 10
\n" ); document.write( "2(2) + 3x = 10
\n" ); document.write( "4 + 3x = 10
\n" ); document.write( "3x = 6
\n" ); document.write( "x = 2
\n" ); document.write( "{2,2} Intersection.
\n" ); document.write( "B) Distance to (2,2) = 2root2 = 2.83 units (2 decimal places)
\n" ); document.write( "C) Using y - b = m(x - a)
\n" ); document.write( "with m = 2
\n" ); document.write( "(a,b) = (2,2)
\n" ); document.write( "y - 2 = 2(x - 2)
\n" ); document.write( "y - 2 = 2x - 4
\n" ); document.write( "y = 2x - 4 + 2
\n" ); document.write( "y = 2x - 2
\n" ); document.write( "Hope this helps :-)
\n" ); document.write( "
\n" ); document.write( "
\n" );