Question 369165
Find two points.
When {{{x=0}}}, {{{y=1-0=1}}}
({{{0}}},{{{1}}})
.
.

When {{{x=1}}}, {{{y=1-3=-2}}}
({{{1}}},{{{-2}}})
.
.
Plot those two points and connect them with a line.
.
.
.
{{{drawing(300,300,-5,5,-5,5,grid(1),circle(0,1,0.3),circle(1,-2,0.3),graph(300,300,-5,5,-5,5,0,1-3x))}}}