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DSE 數學科：函數與圖像

Functions & Graphs

12 題 MCQ（基礎 0 · 中等 12 · 高階 0），撳入去睇完整解說同上一題／下一題。未學過呢個課題？先睇 數學自學路徑單元 3。

  1. 中等MATH-FUNC-001

    1. If f(x) = 2x^2 − 3x + 1, what is f(−1)?

  2. 中等MATH-FUNC-002

    2. What is the axis of symmetry of y = x^2 − 6x + 5?

  3. 中等MATH-FUNC-003

    3. What is the vertex of y = (x − 2)^2 + 5?

  4. 中等MATH-FUNC-004

    4. How many x-intercepts does y = x^2 + 2x + 3 have?

  5. 中等MATH-FUNC-005

    5. Which description matches y = −2(x − 1)^2 + 4?

  6. 中等MATH-FUNC-006

    6. The graph of y = f(x) + 3 is obtained from y = f(x) by which transformation?

  7. 中等MATH-FUNC-007

    7. The graph of y = f(x + 2) is obtained from y = f(x) by a translation of

  8. 中等MATH-FUNC-008

    8. Compared with y = f(x), the graph of y = f(2x) is

  9. 中等MATH-FUNC-009

    9. What is the range of f(x) = x^2 + 1 for real x?

  10. 中等MATH-FUNC-010

    10. If f(x) = 2x + 1 and g(x) = x^2, what is f(g(2))?

  11. 中等MATH-FUNC-011

    11. Which equation is the reflection of y = f(x) in the x-axis?

  12. 中等MATH-FUNC-012

    12. What is the minimum value of y = x^2 − 4x + 7?