Answer:
5/-3
Explanation:
The slope formula is rise/run.
If you graph this, the two points make a line that slopes downwards. The higher point is in the negative axis, which means that the run will be negative.
you rise up 15 points from the first point (1,-6) to get to the same level as the second point. (-8,9). This is your rise.
You go over to the other point, this is your run. The run is -9.
15/-9
we can simplify this fraction.
5/-3 is your final answer.