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1. |
If f(n) = -6n + 2, find f . |
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A. |
-3 |
B. |
8 |
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C. |
9 |
D. |
4 |
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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, -41) |
B. |
(-2, 7) |
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C. |
(-4, -5) |
D. |
(1, -20) |
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Hint |
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3. |
Hector needs to build a rectangular pen for his dog. He decides to use an area of 50 m2 in his backyard for the pen. Using w for the width, find a function f(w) that represents the perimeter of the fence in terms of w. |
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A. |
l + w = 50 |
B. |
l = 50 – w |
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C. |
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D. |
lw = 50 |
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Hint |
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4. |
Find the x-intercepts of the graph of
f(x) = x2 – 2x – 3. |
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A. |
–1, 4 |
B. |
1, –3 |
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C. |
–1, 3 |
D. |
1, –4 |
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Hint |
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