Answer: A and D
Explanation:
For the function to be linear for your problem, you could see if the x increases each time by the same amount and separately looking at the y the y needs to be increasing by the same amount.
A. Correct If I add 3 to each for x's, it's ok, and for the y's i subtract 4 each time
B. Incorrect. The x's look ok because 2 is subtracted each time but y's it starts to subtract 4 then it subtracts 5 for the next one
C. Incorrect. x's are ok but then y's subtract 2 and the last one subtracts 1
D. Correct. x's, each add 1, and y's each subtract 3