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21 August, 19:05

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

f (K) = 0

fl-k) = 0

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

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

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  1. 21 August, 19:07
    0
    f (-k) = 0

    Step-by-step explanation:

    (x + k) is a factor of f (x)

    x+k=0 = > x = - k; - k is a root of f (x)

    => f (-k) = 0
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