AnswersAlgebra III AQuadratic Functions: Factored Form

Quadratic Functions: Factored Form Answers

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Which function has only one x-intercept at (−6, 0)?

A
f(x) = x(x − 6)
B
f(x) = (x − 6)(x − 6)
C
f(x) = (x + 6)(x − 6)
D
f(x) = (x + 6)(x + 6)
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The graph of the function f(x) = –(x + 6)(x + 2) is shown below.

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A
The function is increasing for all real values of x where x < –4.
B
The function is increasing for all real values of x where–6 < x < –2.
C
The function is decreasing for all real values of x where x –2.
D
The function is decreasing for all real values of x wherex < –4.

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