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Link Inputs and Outputs

In this worksheet, students will learn to identify functions accurately and use function relationships to find missing inputs or outputs.

'Link Inputs and Outputs ' worksheet

Key stage:  KS 4

GCSE Subjects:   Maths

GCSE Boards:   Pearson Edexcel, OCR, Eduqas, AQA,

Curriculum topic:   Algebra

Curriculum subtopic:   Notation, Vocabulary and Manipulation Language of Functions

Difficulty level:  

Worksheet Overview

Functions are rules that link inputs and outputs.

In a function, each input has only one corresponding value as an output.

 

 

Here is an example of a function with a rule times by 2:

 

 

However, the picture below does not show a function, just a relationship between numbers:

This is because 1 is linked with two outputs, and in functions, each input must have only one corresponding output.

 

 

 

In this activity, we will identify functions accurately and use function relationships to find missing inputs or outputs. 

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