Question 373192
{{{x-6=y }}}
When {{{x=0}}},
{{{y=0-6=-6}}}
({{{0}}},{{{-6}}})
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When {{{y=0}}}, 
{{{x-6=0}}}
{{{x=6}}}
({{{6}}},{{{0}}})
Plot those two points and connect them with a line,
{{{drawing(300,300,-10,10,-10,10,grid(1),circle(0,-6,0.37),circle(6,0,0.37),graph(300,300,-10,10,-10,10,0,x-6))}}}