What is the equation of the graphed line?

https://snag.gy/Z9vG3D.jpg

Two points on the graph are (0, -3) and (-3, 0)

The slope between these are [ 0 - -3 ] / [ -3 - 0 ] = 3 / -3 = -1

So....the equation of the line is

y = -1(x - 0) - 3

y = -x - 3

y=-2/2x-3