1. **_______** | ****the form , where A, B and C are real numbers such that A and B are not both zero, A is positive if it is not zero, and the greatest common factor of A, B, and C is 1 |

2. _______ | a linear relation written as , where m is the slope and is a point on the line |

3. _______ | ****a relationship between independent and dependent variables characterized by a constant rate of change, a highest degree of 1, and a graph that is a straight line |

4. _______ | a linear relation written as , where m and b are real numbers, m is the slope and b is the y-intercept of the line |