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1. |
Find the coordinates of the vertex of the graph of the equation
y = -3x2 - 12x - 5. |
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A. |
(1, -20) |
B. |
(2, -41) |
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C. |
(-4, -5) |
D. |
(-2, 7) |
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Hint |
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2. |
The vertex of the graph of the equation y = -x2 + 6x + 1 is |
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A. |
both a maximum and a minimum |
B. |
a minimum |
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C. |
neither a maximum nor a minimum |
D. |
a maximum |
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Hint |
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3. |
What is the equation of the graph shown? |
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A. |
y = -x2 - 2x - 1 |
B. |
y = x2 - 2x + 1 |
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C. |
y = -x2 +2x - 1 |
D. |
y = x2 + 2x + 1 |
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Hint |
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4. |
Suppose the equation of the axis of symmetry is x = 2. What is the y-coordinate of the vertex? |
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A. |
2 |
B. |
-2 |
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C. |
cannot be determined from given information |
D. |
4 |
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Hint |
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5. |
Find the vertex of y = –2x2 + 4x – 3, and tell whether it is a maximum or minimum. |
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A. |
(1, –1), maximum |
B. |
(–1, –9), maximum |
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C. |
(–1, 1), maximum |
D. |
(1, 3), minimum |
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Hint |
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