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Which ordered pair does not belong with the other three?

a.(1, -2),
b.(0, -4),
c.(-1, -6,)
d.(2, -4)

1 Answer

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Final answer:

The ordered pair that does not belong is d. (2, -4) because, unlike the other pairs, the y-value does not increase by 2 for every unit increase in x.

Step-by-step explanation:

To determine which ordered pair does not belong with the other three, let's look for a pattern among them. We have:

  • a. (1, -2)
  • b. (0, -4)
  • c. (-1, -6)
  • d. (2, -4)

Looking at the y-values, it appears that for each unit increase in x, the y-value decreases by 2. Let's test this out:

  • From (0, -4) to (1, -2), the x-value increases by 1 and the y-value increases by 2 (going from a more negative to a less negative value is an increase).
  • From (-1, -6) to (0, -4), the x-value increases by 1 and the y-value increases by 2.

However, when looking at pair d. (2, -4), if we apply the same pattern, we would expect the y-value to be -2 when the x-value increases by 1 from pair a. (1, -2), but it stays at -4. Therefore, the ordered pair that does not follow the pattern is:

d. (2, -4)

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