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Edexcel IGCSE Math A 3.2.HB function notation

Practise function-notation questions by substituting the given input into the function rule and simplifying the output accurately.

Syllabus
First assessment 2018
Course
Math A 4MA1
Level
Higher

Exam points

  • Substitute values such as 3, -2 or 1/3 into f(x) or g(x) before simplifying.
  • Use function notation to report the output value with correct signs and fractions.

3.2.HB Function notation question 1

[Maximum number: 1]

f is the function such that f(x)=4-3 x

Work out f(5)
g is the function such that g(x)=11−2x\mathrm{g}(x)=\frac{1}{1-2 x}

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