Answer:
decreasing, linear
Step-by-step explanation:
you could find the first differences and then the secon ddifferences, but when it's allowed to use Desmos, why not, lol, so, looking at the 4 points plotted on Desmos, it is decreasing, and linear
Decreasing; Linear
This is a linear line for a fact.
And the line is decreasing. I used desmos to graph these points.
You can see for yourself, in the image I provided
