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1. |
Find the coordinates of the vertex of the graph of the equation
y = x2 - 5x + 7. |
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A. |
 |
B. |
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C. |
(0, 7) |
D. |
(5, 7) |
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Hint |
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2. |
Find the coordinates of the vertex of the graph of the equation
y = -3x2 - 12x - 5. |
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A. |
(-2, 7) |
B. |
(1, -20) |
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C. |
(2, -41) |
D. |
(-4, -5) |
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Hint |
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3. |
Which is the graph of the equation y = 2x2 - 1? |
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A. |
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B. |
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C. |
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D. |
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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. |
4 |
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C. |
-2 |
D. |
cannot be determined from given information |
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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, –1), maximum |
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C. |
(1, 3), minimum |
D. |
(–1, –9), maximum |
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Hint |
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