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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Nestor RutherfordLv2

3 Apr 2020

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If (x + 8) is a factor of f(x), which of the following must be true? a) Both x = –8 and x = 8 are roots of f(x).

b) Neither x = –8 nor x = 8 is a root of f(x).

c) f(–8) = 0

d) f(8) = 0

bronzeelk458

(k) At x = 0, which of the following is true for the function f(x) = x2 +e-2x? (A) f is increasing (B) f is decreasing (C) f is discontinuous. (D) f has a local minimum. (E) f has a local maximum. Answer:

which could be the graph of f(x) = |x - h| + k if h and k are both positive?

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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