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Function Machines

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Question 4
69%

Here is a number machine.

Input⟶×3⟶−7⟶Output \text{Input} \longrightarrow \times 3 \longrightarrow - 7 \longrightarrow \text{Output} Input⟶×3⟶−7⟶Output
a.

Find the output when the input is 6

[1]
b.

Find the input when the output is 20

[2]

Function Machines Questions

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

Practise OCR GCSE Maths Function Machines with exam-style questions for Foundation and Higher tier. 38 questions, matched to the OCR GCSE Maths (J560) specification and written in the written papers style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

Question bank