AnswersAlgebra III AQuadratic Functions: Vertex Form

Quadratic Functions: Vertex Form Answers

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The function f(x) = –0.3(x – 5)2 + 5 is graphed. What are some of its key features? Check all that apply.

A
The axis of symmetry is x = 5.
B
The domain is {x| x is a real number}.
C
The function is increasing over (–∞, 5).
D
The minimum is (5, 5).
E
The range is {y| y ≥ 5}.
2
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If h = –5, the vertex shifts to .

A
(–5, 0)
B
(0, –5)
C
(0, 5)
D
(5, 0)

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