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Functions and Graphs

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Question 21

The graph shows a sketch of y=∣x+1∣−2y = |x + 1| - 2y=∣x+1∣−2

A coordinate graph with x- and y-axes and arrowheads, labelled x, y and O, showing a V-shaped sketch of y = |x + 1| − 2 with its vertex and two x-axis crossings.

Find the set of values for which ∣x+1∣<2|x + 1| < 2∣x+1∣<2

[4]
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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