Question

Part A: What does 0 represent in this situation? (3 points)

Answer 1

Using the concept of number line, the solution to the questions posed are :

• Pool surface
• The height of slide is 12 meters above the pool surface
• The level of the bottom of the pole should be marked as -3

The pool surface would be treated as sea level surface, such that, position below are marked as negative and position above are marked as positive.

• Therefore, the surface of the pool is marked as the sea level position, 0.

• Since the slide is above the surface of the pool, it's value will the positive. Hence, the height of the slide is 12 feets.

• The marked position is below the pool surface, hence, it will take up a negative value of - 3 feets.

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