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# Exit Level Math TAKS

### Vocabulary Review for the Exit Level Math TAKS

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

Parent Function | The most basic graph (no shifts, stretches, etc.). *Must go through the origin* *Must be positive* ALWAYS LINEAR or QUADRATIC |

Quadratic Parent Function | y = x^2 |

Linear Parent Function | y = x |

Domain | The X-VALUES for a specific function |

Range | The Y-VALUES for a specific function |

Absolute Value Parent Function | y = |x| |

Equation of a line | y = mx + b m = slope b = y - intercept |

X - intercept | Point where the line crosses the x-axis when y = 0 (x, 0) |

Y - intercept | Point where the line crosses the y-axis when x = 0 (0, y) |

Undefined slope | UP & DOWN IS UNDEFINED X = a # |

Zero Slope | AcrOss Y = a # (it can be graphed in the calc) |

Regular ________ (the name of a shape) | Tells you that all sides of the shape are congruent |

Solution to a system of equations | The point where the two graphs intersect |

Solving equations | The value or values that make the equation or inequality true (plug in the values and see which one works) |

Solutions of a quadratic equation | SOLUTIONS, ROOTS ZEROS, X-INTERCEPTS (where the graph crosses the x-axis) |

perimeter | The distance around the outside of a figure (in a circle, it is called the circumference) |

Equilateral triangle | All sides are equal, each angle is 60 degrees |

Isosceles Triangle | Two sides are the same (also means that two angles are the same) |

Supplementary Angles | The sum of the angles is 180 degrees (in alphabetical order C = 90, S = 180) |

Complementary Angles | The sum of the angles is 90o (in alphabetical order C = 90, S = 180) |

Sum of the angles of a triangle | 180 |

Less than | Made with the LEFT hand, Means shade BELOW |

reflection | MIRROR |

translation | SHIFT/SLIDE |

Greater than | Made with the RIGHT hand, Means shade ABOVE |

Parallel lines | Have the same slope Never touch |

Perpendicular lines | Meet at a 90 degree angle |

Line of symmetry | A line that can be drawn through a figure that causes both sides to look identical |

Scalene triangle | A triangle that has no congruent sides |

function | The x’s don’t repeat!!! Passes the vertical line test (if you draw a vertical line anywhere on the graph it only touches the graph once) |

Independent Variable (independent quantity) | Y Variable who’s value DEPENDS on another variable (must be an unknown) |

Dependent Variable (dependent quantity) | X Variable who’s value can be chosen If given an equation, it is the variable IN the equation (must be an unknown) |

Composite Figure | A figure composed of different shapes |

Similar figures | has proportional sides (set up a proportion and cross multiply) |

Total Surface Area | The area of all of the surfaces of a three dimensional figure |

Lateral Surface Area | The area of the surfaces of a three dimensional figure NOT including the base(s) |

Mean | The average of a set of data (add all then divide by how many there are) |

Median | In a set of data that is written in numerical order, the one in the MIDDLE |

Mode | In a set of data, the one that occurs the MOST |

Range | In a set of data, the difference between the highest and lowest |

Multiple probabilities | To find the probability of MULTIPLE (more than one) things happening MULTIPLY |

Rotation | To twist or turn a figure |

Theoretical Probability | What you think should happen before you find the probability of a set of events |

Volume | The space inside a 3 dimensional figure How much a figure can hold |

Experimental Probability | What actually happened when you found the probability of a set of events |

Dilation | Make bigger or smaller (multiply by a scale factor) |

Sales Tax | A percentage. It is added to the original price. Ex. Shirt cost 14.50 and there is 8.25% tax 14.50 + 14.50*.0825 = 15.70 |

System of Equations | More than one equation |

Commission | A percent of a person’s sales. It is ADDED to their hourly pay. Ex. Sally makes $6/hour and works 20 hours and commission is 5%. How much will she make if she sells $1000. 6*20 + .05*1000 = 170 |

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