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1. |
Find the vertex of the graph of f(x) = x2 + 4x - 5. |
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A. |
(2, 7) |
B. |
(0, -5) |
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C. |
(-2, 9) |
D. |
(-2, -9) |
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Hint |
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2. |
What is the y-intercept of the function y = 2x2 + 1 |
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A. |
0 |
B. |
3 |
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C. |
1 |
D. |
none |
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Hint |
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3. |
Find the minimum value of  . |
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A. |
2 |
B. |
(2, 7) |
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C. |
11 |
D. |
7 |
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Hint |
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4. |
If a = 2 and the vertex is (3, -4), will there be a minimum or maximum value for the parabola? What is the value? |
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A. |
maximum, –3 |
B. |
maximum, –4 |
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C. |
minimum, –4 |
D. |
maximum, 3 |
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Hint |
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5. |
In the equation y = x2 – 5, what is the axis of symmetry, and what is the minimum? |
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A. |
x = –5, min = 0 |
B. |
x =  , min = 0 |
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C. |
x = 0, min = |
D. |
x = 0, min = –5 |
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Hint |
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