Let's summarize the information given about Points A and B in a structured way:
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Elevation of Point A:
- Point A is represented as \( A = -d \), where \( d \) is a positive distance below sea level. This means Point A is located at a negative elevation.
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Distance from 0 to Point A:
- The distance from 0 to Point A is \( |A| = |-d| = d \). This indicates that the absolute value (or distance) from sea level (0) to Point A is \( d \).
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Elevation of Point B:
- Point B is positioned \( d \) units above 0, hence its elevation can be expressed as \( B = d \). Point B is located at a positive elevation that is the same numerical value as the distance from Point A below sea level, but on the positive side.
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Relationship Summary:
- Point A (negative elevation) is a distance \( d \) below sea level, for example, if \( d = 200 \) then \( A = -200 \).
- Point B (positive elevation) is at an elevation \( d \) above sea level, for example, if \( d = 200 \) then \( B = 200 \).
- Point B is thus the positive counterpart of Point A, maintaining the same absolute distance from 0 on the number line.
To conclude, if \( d \) is a positive distance:
- Point A: \( A = -d \) (below sea level)
- Point B: \( B = d \) (above sea level)
These values demonstrate a direct relationship where:
- The elevation of Point A is always the negative of the elevation of Point B in terms of absolute value.