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11 June, 12:58

Is f (x) = x^2 - 1 a function?

Why or why not?

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Answers (1)
  1. 11 June, 14:44
    0
    Yes

    Step-by-step explanation:

    The function f (x) = x^2 - 1 is a quadratic due to its degree of 2. Its graph is a parabola or u-shaped graph which passes the vertical line test. This means it assigns each input a distinct output. Inputs do not repeat with different outputs. This is a function.
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