The equation of a linear relation is: y=-3x+8 which ordered pairs are not relation: A (3,...

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The equation of a linear relation is: y=-3x+8 which ordered pairs are not relation: A (3, -1) B (7, -13) C ( 8, -16) D (9, -20)

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You just need to put coordinate of x and y in equation:

1)
-1=-3*3+8
-1=-1
2)
-13=-3*7+8
-13=-13
3)
-16=-3*8+8
-16=-16
4)
-20=-3*9+8
-20 \neq -19

The last pair isn't the relation of equation.

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