D is the answer to your question
The answer in is 4.4 bc 1/3 of 13.1(which is half of the total distance) is 4.4
You are now on the 5th floor.
0 - 1
1 - 2
2 - 3
3 - 4
4 - 5
What you do is plug the z value (first column) into the formula (second column), and solve for y. For instance, the first one would be y = -1-2, or -3. The x would be the x in the ordered pair, and the final ordered pair would be (-1,-3). Make sense?