Answer is 13/2 slope
Step by step
Slope is rise (up or down) over run (left or right)
Slope can be found using the formula
y2 - y1 over x2 - x1
-4 -9 over -2 -0
-13 over -2 = -13/-2 or 13/2 slope
You can also find slope by graphing the two points and finding rise over run like I did in the attachment