嘉定一中AP选修课
AP Calculus BC
课程概览
Microeconomics
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Calculus BC
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Unit 1 练习
Unit 1 Practice: Functions and Models
函数与模型 练习
📝 5 道选择题
1. If f(x) = 2x + 1 and g(x) = x², then (g ∘ f)(x) =
A. (2x+1)²
B. 2x²+1
C. 4x²+4x+1
D. x²+2x+1
2. The domain of f(x) = √(4-x²) is:
A. [-2, 2]
B. (-∞, -2] ∪ [2, ∞)
C. (-2, 2)
D. All real numbers
3. If f(x) = eˣ, then f⁻¹(x) =
A. ln(x)
B. e⁻ˣ
C. log₁₀(x)
D. xᵉ
4. Which of the following functions is even?
A. f(x) = x² + 1
B. f(x) = x³
C. f(x) = x² + x
D. f(x) = eˣ
5. If f(x) = ln(x), the range is:
A. (-∞, ∞)
B. (0, ∞)
C. [0, ∞)
D. All real numbers except 0
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