The question in the image states that Janae records the temperature at noon and finds that the temperature has decreased by 8°F by 7:00 p.m. The task is to identify which of the given temperature pairs (noon and 7:00 p.m.) match this condition.

Let's analyze each option based on this condition:

1. 4°F at noon and -4°F at 7:00 p.m.

   • Change: $4 - (-4) = 4 + 4 = 8$ → This fits the condition.

2. 8°F at noon and -8°F at 7:00 p.m.

   • Change: $8 - (-8) = 8 + 8 = 16$ → This does not fit the condition.

3. 5°F at noon and -3°F at 7:00 p.m.

   • Change: $5 - (-3) = 5 + 3 = 8$ → This fits the condition.

4. -2°F at noon and 6°F at 7:00 p.m.

   • Change: $-2 - 6 = -8$ → This does not fit the condition since the change is positive, not negative.

Thus, the correct answers are:

• Option 1 (4°F at noon and -4°F at 7:00 p.m.)
• Option 3 (5°F at noon and -3°F at 7:00 p.m.)

Would you like further clarification or details on any part of the explanation?

Here are 5 related questions for deeper understanding:

1. How do you calculate temperature changes involving negative numbers?
2. Why is the subtraction of negative temperatures tricky in real-world contexts?
3. What are some real-world examples where temperature decreases are significant?
4. Can you describe a scenario where temperature changes affect daily activities?
5. How would this problem change if the temperature drop was a fractional degree?

Tip: When subtracting negative numbers, remember that subtracting a negative is equivalent to adding its positive value.