Answer: Choice B
Explanation:
Notice that the jump from y = 9 to y = 10 is +1
But the jump from y = 10 to y = 12 is +2
This is sufficient info to say that the rate of change is not constant. The change in y must be the same.
If you were to plot these points on the same xy grid, then you could see that it's impossible to draw a straight line through all four points.
See below.
