is this linear or non linear??

Answer: Linear
Each time y goes up by 4, x goes up by 2
This leads to
slope = rise/run = (change in y)/(change in x) = 4/2 = 2
So the slope is 2.
Answer:
Yes
Step-by-step explanation:
It's linear because the function here is y=x-1 and these points make up a straight line.