Question

Draw the graph of linear equations 2x-y+6=0

Answer 1

I think it will help you
y=2x+6
put y=0
than x=-3
and again put x=0
than y = -6
now points coordinate and draw straight line on the coordinate u will get polynomial graph

Answer 2

2x-y = -6 => x = (-6+y)/2

x = -3 -2 -4
y = 0 2 -2