Quick please. Timed. Which table represents a LINEAR function? (will give brainliest)

Answer: The answer is the last graph.
Step-by-step explanation:
The first graph's difference is not a constant ratio.
The 2nd is multipled first by -5, then 5. Therefore wrong.
The third's difference is changing: (4,8,16...._) It would have to be always 4 if it was a linear.
The last one has the same increase every time.