Answer :

x = -1 y = -3 (-1, -3)
x = 0 y = 0 (0, 0)
x = 1 y = 3 (1, 3)
x = 2 y = 6 (2, 6)
x = 4 y = 12 (4, 12)
Try graphing those and see if it’s linear.

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