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Edexcel IGCSE Math B 4.G variation

Practise variation questions by translating the statement into a formula with k, finding the constant and substituting new values.

Syllabus
First assessment 2018
Course
Math B 4MB1

Exam points

  • Write direct or inverse variation formulae involving squares, cubes or cube roots.
  • Find the constant of proportionality from given values before substituting.
  • Combine linked proportional relationships to express one variable in terms of another.

4.G Variation question 1

[Maximum number: 1]

3 y varies inversely as the square of x.

Write down a formula for y in terms of x and a constant k.

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