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# Math Chapter 7 Vocab

### Math Chapter 7 Vocabulary

Question | Answer |
---|---|

Graph | The point in the plane |

X-Axis | The horizontal line in a graph |

Y-Axis | The Vertical line in a graph |

Ordered Pair | The order in which the numbers occur tells which number goes with which variable. (4,7) is an ordered pair |

Abscissa | The first number in an ordered pair |

Ordinate | The second number in an ordered pair |

Coordinates | (4,7) are called coordinates of a plane |

Cartesian Coordinate System | The whole system, x-axis, y-axis, and points on a plane |

Quadrants | The four regions in a graph |

Scale | The numbers and arrows in a graph |

Solution/Solution set | A solution of an equation with two variables is an ordered pair that makes an equation a true statement |

Y-Intercept | The value of y when x is 0 |

X-Intercept | The Value of x when y is 0 |

Rise + Run | Is going from one point to another in a cartesian coordinate system, the run is the change in x and the rise is the change in y |

Slope | The slope of a line is the ratio |

Slope-Intercept Form | An equation of the form y=mx +b, where m and b are constants, is an slope-intercept form The constant m is the slope The constant b is the Y-Intercept |

Slope of horizontal vertical lines | Horizontal lines have 0 for a slope. Vertical lines do not have a slope |

Point-Slope form of a linear equation | An equation in the form y- y1 = m(x-x1) Is said to be in the point-slope form. THe slope is m, and a fixed point on the line is (x.y) the variables x and y stand for coordinates of a variable point on the line. |

Equation of Horizontal and Vertical Lines | If y = constant, the graph is a horizontal line If x = constant, the graph is a vertical line |

System of Equations | A system of equations is two or more equations with the same variables |

Solution of a System | A solution of a system of equations is n ordered pair that satisfies all the equation in the system |

Substitution | A method of solving a system of equations by solving one equation to get one of the variable sand substituting the result in the other equation |

Simultaneous Equations | Solve both equations at the same time |

Linear Combination | A method for solving a system of equations, A linear combination of two quantities is what you get by multiplying each quantity by a constant and adding the results. |

Created by:
MurphyMatt