A drop of 15 degrees can be represented as a negative number, specifically -15. This indicates that the temperature decreased by 15 degrees from its original value.

For example:

• If the temperature was originally 10°C, after a 15-degree drop, it would be 10 - 15 = -5 \,^\circ\text{C}.

Would you like me to explain further, or provide examples? 😊

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Relative Questions:

1. How would you represent a temperature increase of 10 degrees?
2. What is the significance of negative numbers in temperature changes?
3. How do you calculate the new temperature after multiple changes (both increases and decreases)?
4. If the initial temperature was 5°C and it dropped 15 degrees, what would be the new temperature?
5. How might you represent temperature changes graphically?

Tip:

When representing changes, think of increases as positive numbers and decreases as negative numbers!