Answer:
y=-1/2x-3
Step-by-step explanation:
Let's pick two points for slope.


For the y-inctercept, the line intersect at the y-axis at (0,-3)
CHECK:



Answer:

Step-by-step explanation:
is an angle in the third quadrant
To find the reference angle subtract π from it
reference angle =
- π = 
The graph is shown in the attached image.