The easiest way to draw the graph is to find the intercepts and draw a line through them.
x-intercept is found by putting y=0 and solve for x: 0=x+2, x=-2 is the x-intercept.
y-intercept is found by putting x=0 and solve for y: y=2 is the y-intercept.
So draw a line through (-2,0) (on the x-axis) and (0,2) (on the y-axis).