Answer:
-4 degrees turn into 30 degrees.
Start at -4.
[tex] -4 [/tex]
Move 4 degrees higher.
[tex]-4 + 4[/tex]
[tex] 0 [/tex]
Move 30 degrees higher.
[tex]0 + 30 = 30[/tex]
You moved 34 degrees up.
So, the change in temperature from 2 am to noon was 34 degrees.