Remark
We have to figure out which of the graphs is not linear if they were graphed.
Eliminations
The last one is the graph of
y = 22 - 2x which is still a straight line.
D is linear.
The second last one is the table for
y = 3x which is a straight line going through the origin.
The second from the top is not easily deciphered.
The line I get is y = - x - 3 which is linear or a straight line.
The top one is
y = x^2 which is not linear at all
Answer A <<<<<