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 |

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 |

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 |

Complementary Angles |
The sum of the angles is 90o
(in alphabetical order |

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 |

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

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 |