Starting from the top right of the graph, that is quadrant 1. The one to the left of Q1 is quadrant 2. Below Q2 is quadrant 3 and last is quadrant 4.
The ordered pair (-4,-6) falls in Quadrant 3.
You are already a prose writer if you have written poems, or human conversations are examples of prose. Essays are also examples of prose writings and I am sure you have written some of those!
Hope this helped!