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Functions and Graphs

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Question 173

The function f−1f^{-1}f−1 is defined by f−1(x)=x−52\displaystyle f^{-1}(x) = \sqrt{\frac{x-5}{2}}f−1(x)=2x−5​​, x≥5x \geq 5x≥5

a.

Find the range of f−1f^{-1}f−1

[1]
b.

Find f(x)f(x)f(x)

[3]
c.

State the range of f(x)f(x)f(x)

[1]
Markscheme

Functions and Graphs Questions

  1. A Level
  2. /Maths
  3. /Functions and Graphs

471 exam-style questions on Edexcel A Level Maths Functions and Graphs, covering 2.1 The Modulus Function, 2.2 Functions and Mappings, 2.3 Composite Functions, 2.4 Inverse Functions, 2.5 y=|f(x)| and y=f(|x|), 2.6 Combining Transformations, and 2.7 Solving Modulus Problems. Each one has a worked solution and a mark scheme showing where the marks go.

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