Hello,

1. transcribe the equation to:

2. go to the

3. write at \Y1=-2x - 1. Take care that you use the to type the sign in front of 2x

4. open the :

I suggest that you use the following settings:

xmin = -5

xmax = 4

xscl = 1

ymin = -5

ymax = 4

yscl = 1

xres = 1

5. press the to draw the graph.