Q1:
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A farmer has 500 metres of fencing. He wants to enclose the largest rectangular area he can.
A formula for the area A is:
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A. A = 2ab B. A = 4ab C. A = ab D. A = 0.5ab |
Answer 1:
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Q2:
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What is the value of b in terms of a for the rectangle in question 1? |
A. b = 250 - a B. b = 250 - 2a C. b = 500 +2a D. b = 250 + a |
Answer 2:
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Q3:
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In question 1, if A = a(250 - a) find A' |
A. A' = 250 - 2a B. A' = 250 - a C. A' = 500 - 2a D. A' = 250a |
Answer 3:
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Q4:
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The maximum value of a function f(x) occurs when: |
A. f ''(x) = 0 B. f '(x) > 0 C. f '(x) = 0 D. f '(x) < 0 |
Answer 4:
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Q5:
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What is the maximum value of f(x) = 4 - x2? |
A. 0 B. 2 C. -2 D. 4 |
Answer 5:
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