Question

Which representations are functions?

Answer 1

9514 1404 393

Answer:

  2)  II and IV

Step-by-step explanation:

A function will have only one output value for any given input.

I. The table has two different outputs for an input of x=2.

II. The first values of the ordered pairs are all unique. This is a function.

III. The graph shows two different output values for each x input that is greater than 0.

IV. A polynomial always represents a function.

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The representations in II and IV are functions.