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Function Machines

Function Machines

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Question 20

Here is a number machine.

A number machine shows Input followed by ×7, then +1, then Output.

a.

What is the output when the input is 4?

[1]
b.

What is the input when the output is 57?

[2]
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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