Quadratic Functions: Standard Form Answers
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80609
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What is the vertex of the parabola in the graph?
Answers:
Blank 1:-3
Blank 2:-4
80611
The graph of the function f(x) = x2 + 8x + 12 is shown. Which statements describe the graph? Check all that apply.
A
The vertex is the maximum value.B
The axis of symmetry is x = –4.C
The domain is all real numbers.D
The range is all real numbers.E
The function is increasing over (–∞, –4).F
The x-intercepts are at (–6, 0) and (–2, 0).80612
The axis of symmetry for the function f(x) = –2x2 + 4x + 1 is the line x = 1. Where is the vertex of the function located?
A
(0, 1)B
(1, 3)C
(1, 7)D
(2, 1)80613
Which functions have an axis of symmetry of x = –2? Check all that apply.f(x) = x2 + 4x + 3f(x) = x2 – 4x – 5f(x) = x2 + 6x + 2 f(x) = –2x2 – 8x + 1f(x) = –2x2 + 8x – 2
A
f(x) = x2 + 4x + 3B
f(x) = x2 – 4x – 5C
f(x) = x2 + 6x + 2D
f(x) = –2x2 – 8x + 1E
f(x) = –2x2 + 8x – 280614
What is the vertex of the function f(x) = x2 + 3x + ?
Answers:
(, ):–3
(, ):–3
80615
What is the vertex of the function f(x) = x2 + 3x + ?
Answers:
(, ):–3
(, ):–3
80616
✔ –301.515
A
✔ –3B
0C
1.5D
1580617
Consider the function f(x) = x2 + 2x – 15. What are the x-intercepts of the function?
Answers:
x:-5
x:3
80618
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Answer:
3
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