Question

  I need help to answer this question. Please, someone help.

Answer 1

$\frac{y-y}{x-x}$=gradient
$\frac{7+3}{-2+4} = 5$
Perpendicular gradient therefore is $\frac{-1}{5}$

With this info, y-y1=m(x-x1)
5(y-8)=-1(x-6)
5y-40=-x+6
5y=-x+46
$y= \frac{-x}{5} + 9.2$