document.write( "Question 885447: which type of line matches these equations x+y=10 and x-y=6 \n" ); document.write( "

Algebra.Com's Answer #535178 by DrBeeee(684) $\"\"$ $\"About$

You can put this solution on YOUR website!
Im not sure what is is meant by type of line, but here goes.
\n" ); document.write( "Rewrite the two lines in slope/intercept form
\n" ); document.write( "(1) y = mx + b
\n" ); document.write( "You get two lines
\n" ); document.write( "(2) y = -x + 10 and
\n" ); document.write( "(3) y = x - 6
\n" ); document.write( "Note that the slope of (2), the coefficient of x, is -1 and the slope of (3) is +1. This gives us
\n" ); document.write( "(4) m1*m2 = -1 which proves that the two lines are perpendicular to each other.
\n" ); document.write( "If you solve (2) and (3) simultaneously you find that the lines cross at (8,2) \n" ); document.write( "

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