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30 June, 04:22

Tell whether each set of ordered pairs representd a function. Justify your answers.

a. (0,0), (1,1), (2,2), (3,3), (4,4)

b. (0,8), (1,6), (2,4), (3,2), (4,0)

c. (3,0), (3,1), (3,2), (3,3), (3,4)

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  1. 30 June, 04:48
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    To be a function every x should have only one y-value.

    a. (0,0), (1,1), (2,2), (3,3), (4,4) - We do not see repeating values of x, so it is a function

    b. (0,8), (1,6), (2,4), (3,2), (4,0) - We do not see repeating values of x, so it is a function

    c. (3,0), (3,1), (3,2), (3,3), (3,4) - We see repeating value of x, that means that one value of x corresponds many values of y, so it is not a function.
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