Question 1024838
Your strategy reads well and you should be able to judge if your answer is good or bad.  For part (a), perpendicular lines means what?  Parallel means what?  Make a sketch or try imagining the sketch in your head.



Two points, formula for slope:  {{{m=(y[2]-y[1])/(x[2]-x[1])}}}.


Slope of the given two points:  {{{(-9-6)/(6-3)=-15/3=-5}}}.



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The parallel line containing  (3,2)?
{{{y=mx+b}}}
{{{y-mx=b}}}
{{{b=y-mx}}}
{{{highlight(y=-5x+(2-(-5)*3))}}}


The perpendicular line containing (3,2)?
{{{highlight(y=(1/5)x+(2-(1/5)*3))}}}
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