Final answer:
The slope of the water slide is 2/3.
Step-by-step explanation:
To determine the slope of the water slide, we can use the formula for slope, which is rise over run. In this case, the rise would be the height of the water slide, which is 6 feet, and the run would be the distance from the base of the ladder to the end of the slide, which is 9 feet.
So the slope of the slide would be 6/9, which simplifies to 2/3.