Question 106222
{{{graph(1000,1000,-20,20,-20,20,x/6-4,6-6x)}}}

In slope-intercept form,

the equations are as follows:

{{{y=x/6-4}}}
{{{y=-6x+6}}}

These are perpendicular because if you multiply their slopes (-6 and {{{1/6}}}), you will get {{{-1}}}


Proof? See the figure above!


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