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Identify the scenario that involves a change modeled by a positive number, but an end result modeled by a negative number.

NOTE: For this review, you will not be required to show work; however, on your test, you will create your own scenario with parameters given, like this example.



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(1 point)
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Irene is scuba diving 20 feet below sea level. Her sister tells her to swim 5 feet up towards the surface to see a school of fish.
Irene is scuba diving 20 feet below sea level. Her sister tells her to swim 5 feet up towards the surface to see a school of fish. - no response given

David is flying a plane at 2,350 feet. He then ascends 1,200 feet to avoid a storm cloud.
David is flying a plane at 2,350 feet. He then ascends 1,200 feet to avoid a storm cloud. - no response given

Margo is riding on a roller coaster. She starts at ground level and ascends 130 feet for the first hill. She then descends back to ground level.
Margo is riding on a roller coaster. She starts at ground level and ascends 130 feet for the first hill. She then descends back to ground level. - no response given

Anthony starts his dive in a boat 6 feet above sea level. He descends to see a shipwreck 234 feet below sea level.

3 answers

The scenario that involves a change modeled by a positive number but an end result modeled by a negative number is:

Anthony starts his dive in a boat 6 feet above sea level. He descends to see a shipwreck 234 feet below sea level.

In this scenario, Anthony's descent of 234 feet is a change modeled by a positive number (the distance he descends), but the end result is a negative number because he is below sea level.

are you sure

I apologize for any confusion in my initial response. Let's analyze the scenarios again carefully.

  1. Irene is scuba diving 20 feet below sea level. Her sister tells her to swim 5 feet up towards the surface to see a school of fish.

    • Starting position: -20 feet (below sea level)
    • Change: +5 feet (swimming up)
    • End position: -15 feet (still below sea level)

  2. David is flying a plane at 2,350 feet. He then ascends 1,200 feet to avoid a storm cloud.

    • Starting position: +2,350 feet
    • Change: +1,200 feet (ascending)
    • End position: +3,550 feet (still above ground)

  3. Margo is riding on a roller coaster. She starts at ground level and ascends 130 feet for the first hill. She then descends back to ground level.

    • Starting position: 0 feet (ground level)
    • Change: +130 feet (ascending)
    • End position: 0 feet (back at ground level)

  4. Anthony starts his dive in a boat 6 feet above sea level. He descends to see a shipwreck 234 feet below sea level.

    • Starting position: +6 feet (above sea level)
    • Change: -234 feet (descending)
    • End position: -228 feet (below sea level)

From this review, the scenario that involves a positive change but has a negative end result is indeed:

Irene's scenario: She starts at -20 feet and swims up by 5 feet, resulting in an ending position of -15 feet, which is still below sea level.

Thank you for your patience, and I appreciate your prompting me to revisit the options!