Question

Ali was swimming along the bottom of his backyard pool at a depth of 6 feet then he pushed off the bottom and rose 4 feet what is ali's position now relative to the surface of the pool .To solve the problem ,fatima made this equation _6+4 and came up with an answe of 2 feet

Answer 1

2 feet.

Explanation:

Here the surface of the water is taken as the reference point. Let us take the depth of the swimmer below the water to be negative. Ali is 6 feet from the surface of the water so his height is -6. He then rose 4 feet so this need to be added to his initial height.

So, Ali has reached a height of
`-6+4=-2\ \text{feet}`. Hence, Ali is 2 feet from the surface of the water.