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# HSA ALGEBRA VOCAB

### Vocab words used in Algebra HSA questions

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

a mathematical statement that shows two expressions are equal | Equation |

a geometric figure that goes straight through a set of points | Line |

an algebraic statement that contains a constant value and a rate that forms a line | Linear Equation |

a letter that is used to represent an unknown quantity | Variable |

a line that has all the same x-coordinates, goes up and down | Vertical Line |

a mathematical statement that shows two expressions are less than or greater than | Inequality |

a set of two or more equations that each contains variables | System of equations |

two lines that never cross or overlap | Parallel |

two lines that intersect at a ninety degree angle | Perpendicular |

an equation that is used to determine the solution to real-world situation by plugging in values for a rule | Formula |

a mathematical object that is an array of numbers that can be used to describe a real-world situation. | Matrix |

things that are arranged by a rule can be with addition, subtraction, multiplication, division, pictures, or expressions | Pattern |

for each x there is only one y value (vertical line test) | Function |

a pattern that has a constant rate of change | Linear (y = mx + b) |

“x-squared” or “x to the second power” increases by odds 1, 4, 9, 16, 25, … | Quadratic |

“x to the third power” 1, 8, 27, 64, 125, … | Cubic |

a way to organize data to see the relationship between x and y | Table |

a visual way to organize data to see the relationship between x and y | Graph |

a mathematical statement that contains variables, addition, subtraction, multiplication, or division | Expression |

the highest point on a graph | Maximum |

the lowest point on a graph | Minimum |

where the graph crosses the x-axis also known as roots | Zeros |

where the graph crosses the y-axis | y-intercept |

the unit at which the y changes for one unit of x as known as slope | Rate of Change |

the set of x values for a graph | Domain |

the set of y values for a graph | Range |

the state of graph where there are no breaks or holes | Continuity |

a way to pair an x-value with its y-value to plot on a graph | Coordinates |

To use given information to forecast an outcome | Prediction |

A way to make a prediction where two ratios are used to solve for an unknown. | Proportion |

A way to make a prediction where an event is set up using random numbers to match the given probability | Simulation |

A way to make a prediction when there seems to be a linear trend by plugging numbers into an equation | Line of Best Fit |

A branch of mathematics that deals with collecting, organizing and analyzing data. | Statistics |

A type of sampling that ensures everyone in equally likely to be chosen and independently chosen | Simple Random Sample |

A type of sample that requires all groups of interest are included. | Representative |

Mean, median, and mode for a set of data | Measures of Central Tendency |

The average of a set of numbers/data. | Mean |

The middle number of a set of ordered numbers/data. | Median |

The number(s) that occur the most often is a set of numbers/data. | Mode |

A way to describe how much a set of data changes from on another using the range, quartiles, and interquartile range. | Measures of Variablty |

The highest number minus the lowest number used to describe the spread of the data. | Range (Stats) |

The upper quartile minus the lower quartile used to describe the spread of the middle 50% of the data. | Interquartile Range |

The numbers that show where each section of 25% end in a set of data | Quartiles |

Created by:
elemalg2