Tables and rules

A rule shows the relation between two varying quantities.

Let's consider the rule below.

So we could describe this rule as

Number of matchsticks = 4 x number of diamonds or;

output = 4 x input

Completing a table of values

Let's have a go together a completing the below tables with the given rule.

Now it's your turn, please complete question 4 from page 387 of your text book.

Find a rule from a table of values

Sometimes we are given a table and we need to work out the rule ourselves, let's do this together with the below tables.

Please complete the rest of the questions for 8K starting on page 390 of your text book.

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