Answer:
It is a linear function because the graph contains the points (0, −3), (1, −1), (2, 1), which are on a straight line.
Step-by-step explanation:
(0,-3) goes on the straight line perfectly
(1, −1) goes on the straight line perfectly
(2, 1) goes on the straight line perfectly
this means that it is a linear function due to all the points being on the line
hope this helps!