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29 November, 00:27

If (x + k) is a factor of f (x), which of the following must be true?

f (k) = 0

f (-k) = 0

A root of f (x) is x = k.

A y intercept of f (x) is x = - k.

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Answers (1)
  1. 29 November, 01:58
    0
    If (x+k) is a factor of f (x), it means that (x+k) = 0, or x=-k.

    This means that f (-k) = 0
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