Question 1180511
The slope of AB is 8/4 or 2
The slope of a perpendicular line to AB has slope which is the negative reciprocal of 2, or -1/2.
That line goes through point (1, 1).
Its equation is y-y1=m(x-x1) where m is slope and (x1, y1) point.
y-1=-(1/2)(x-1)
y=-(1/2)x+(3/2)
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the other line using the point slope formula is y-6=2(x-5), or y=2x-4
{{{graph(300,300,-10,10,-10,10,2x-4,-(x/2)+1.5)}}}