# How do you write a function rule for #x = 2, 4, 6# and #y = 1, 0, -1#?

##### 1 Answer

Mar 20, 2018

#### Explanation:

Set the

Change in

Change in

Gradient (slope)

**Assuming** there is a **direct link** between

Relating

Multiply both sides by

Multiply both sides by

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The question is specific in that it states 'function rule for

So we write it as: