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Function Machines

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Question 15

Here is a number machine.

A number machine takes an input, divides it by 9, subtracts 5, and gives an output.

a.

Find the output when the input is 81

[1]
b.

Find the input when the output is 0

[2]
c.

Hence find the input when the output is -1

[1]
Markscheme

Function Machines Questions

  1. GCSE
  2. /Maths
  3. /Function Machines

84 exam-style questions on OCR GCSE Maths Function Machines. Each one has a worked solution and a mark scheme showing where the marks go.

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