#### What's before the variable?

**In layman's terms: **A coefficient is simply the number before an algebraic variable or term. In technical 'math speak', the coefficient is a constant .

### Examples of coefficients

Algebraic expression | The expression's coefficient |
---|---|

3x |
3 |

5 y |
5 |

11x^{2} |
11 |

11xy |
11 (remember the coefficient must be a number) |

x | 1
* Whenever the coefficient is '1', it is generally not written. (This is explained by the multiplicative identity) |

4xyk |
4 |

$$ \frac{3}{4} $$ xyk |
$$ \frac{3}{4} $$ |

xy | 1
(Again when the coefficient is 1 people normally do not write the '1') |

$$ \pi $$ 6 |
$$ \pi $$ |