Question 994834
{{{y=mx+b}}}
{{{b=y-mx}}}


{{{2x+4y=4}}}
{{{x+2y=2}}}
{{{2y=-x+2}}}
{{{y=-x/2+1}}}
slope is {{{-1/2}}}--------


WANT m=2 for perpendicularity, and line for point (9,7).
{{{b=7-(2)*9}}}
{{{b=7-18}}}
{{{b=-11}}}
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LINE EQUATION RESULT WANTED:  {{{highlight(y=2x-11)}}}