AnswersKISD SS-3350B-Algebra I B-CRUnit Test

Unit Test — Unit test Answers

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21
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The curve produced by the water coming from a fountain is sketched on the graph.

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A
f(x) = (x – 2)2 + 3
B
f(x) = –(x – 2)2 + 3
C
f(x) = (x + 2)2 + 3
D
f(x) = –(x + 2)2 + 3
22
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Consider the quadratic function y = (x – 2)2 + 5. Which statements are true about the function and its graph? Select two options.The vertex of the function is (–2, 5).There are no real roots for the function.The graph of the function opens down.The graph contains the point (2, 5).The graph intersects the x-axis at one unique point.

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A
The vertex of the function is (–2, 5).
B
There are no real roots for the function.
C
The graph of the function opens down.
D
The graph contains the point (2, 5).
E
The graph intersects the x-axis at one unique point.
23

The function f(x) = –x2 – 4x + 5 is shown on the graph.

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A
The domain of the function is all real numbers less than or equal to −2.
B
The domain of the function is all real numbers less than or equal to 9.
C
The range of the function is all real numbers less than or equal to −2.
D
The range of the function is all real numbers less than or equal to 9.

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