Question 875834
I think you mean {{{ax+by=4}}}.
Use the points.
{{{a(0)+b(1)=4}}}
{{{b=4}}}
.
.
{{{a(2)+b(0)=4}}}
{{{2a=4}}}
{{{a=2}}}
.
.
The line is then,
{{{2x+y=4}}}