Question

What is the change in temperature from 15° to -9°? Also, can you please explain how you found the answer?

6°

-6°

24°

-24°

Answer 1

when going from a positive number (15) to a negative number (-9) all you need to do is add the numbers together:

15 +9 = 24

so the change in temperature was 24 degrees, but since you were going from a positive number to a negative number that number is decreasing, which means it needs to be negative

the answer would be -24