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Function Machines

Function Machines

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Question 1

Here is a number machine.

A number machine diagram showing Input entering a box labeled 'x5', which then enters a box labeled '-3', resulting in Output.

Input →×5→−3→\rightarrow \times 5 \rightarrow -3 \rightarrow→×5→−3→ Output

a.

What is the output when the input is 7?

[1]
b.

Here is a different number machine.

A number machine diagram showing Input entering a box labeled '+ 11', which then enters a box with '.....', resulting in Output.

Input →+11→\rightarrow + 11 \rightarrow→+11→ ..... → \rightarrow\,→ Output

When the input is 9 the output is 2.

Complete the number machine.

[1]
Markscheme

Function Machines Questions

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

3 exam-style questions on Edexcel IGCSE Maths Function Machines. Each one has a worked solution and a mark scheme showing where the marks go.

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