Question 857008
Use the slope intercept form of the line, {{{y=mx+b}}}
Since you know the intercept,
{{{y=mx-2}}}
Now solve for {{{m}}} using the point.
{{{1=m(3)-2}}}
{{{3m-2=1}}}
{{{3m=3}}}
{{{m=1}}}
So the equation is 
{{{y=x-2}}}
{{{-x+y=-2}}}
Standard form has integer multipliers for x and y and the x coefficient is positive.
{{{highlight(x-y=2)}}}