5. Which of the following tables illustrates a relationship in which y is a one-to-one function of x? (1) xy (4) y y -2 -1 -2 -8 -2 -5 -2 11 -3 -1 -1 -1 -4 -1 -4 -1 -1 -5 4 1 1 1 -1 7 1 -4 3 2 8 -2 5 2 11 2.

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