Question 202662
Set x =0 and solve for y
{{{y=-3-3x}}}
{{{y = -3 -3*0}}}
{{{y = -3}}}
y intercept is (0, -3)

Set y=0 and solve for x
{{{y=-3-3x}}}
{{{0 = -3 -3x}}}
{{{3 = -3x}}}
{{{-1 = x}}}
x intercept is (-1,0)
Now plot those two points and draw the line thru them 
{{{graph(400,400, -5,5,-5,5, -3-3x)}}}