Which graph could be used to show the situation described?

The temperature increases by 4 degrees every hour.

I mean if the temperature increase + 4 every hour I'm pretty sure it would be sunny with no/little amounts of clouds.

just kidding.

An equation like that would most likely look something like x+4 etc. Now from the question, the temperature would be increasing for every single hour. So, you would add + 4 every hour. If you were multiplying, the equation would look more like "x4 ..."