Question 1066094
Find the reference line.


{{{m=(-3-(-7))/(5-(-5))}}}
{{{m=(-3+7)/10}}}
{{{m=4/10}}}
{{{m=2/5}}}
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choose a point, picking  (5,-3).
{{{b=y-mx}}}
{{{b=-3-(2/5)*5}}}
{{{b=-5}}}
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{{{y=(2/5)x-5}}}


Use the point to be excluded from solution region.

{{{4<>(2/5)*8-5}}}
{{{4<>(16/5)-5(5/5)}}}
{{{4<>(16-25)/5}}}
{{{4<>-9/5}}}
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You want the left side as an inequality so that the given point is NOT a solution.  Here, left side is greater than right side.  If say  {{{4>-9/5}}}, this is true.  We want the other direction.


{{{highlight(y<=(2/5)x-5)}}}
The point (8,4)  will not be among the solution for the equation.