Answer:
Look at the expalnation picture attatched!!!
Explanation:
a)plot (6,-1), (0,-4), (-4,-6) then draw teh line connecting all of these points ( Graph with black line is how it shoudl look)
b) plot (-2,0), (0,6), (-4,-6) then draw the line that connects all of these points (picture with red line graph is how this problem should look).