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# Melissa's Key Terms

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

Algebra | A Mathematical language that uses symbol,usually letters,along with numbers.The letters stand for numbers that are unknown. |

Algebraic expression | A combination of variables,numbers, and at least one operation. |

Area | The number of square units needed to cover the surface enclosed by a geometric figure. |

Base | In a power,the number used as a factor. |

Composite Number | A number greater than 1 with more than two factors. |

Cubed | The product in which a number is a factor three times. |

Defining The Variable | Choosing a variable to represent the input when writing a function rule. |

Equals Sign | A symbol of equality,=. |

Equation | A mathematical sentence that contains an equal sign,=. |

Evaluate | To find the value of an algebraic expression by replacing variables with numbers. |

Exponent | In a power,the number of times the base is used as a factor. |

Factor | A number that divides into a whole number with a remainder of zero. |

Formula | An equation that shows a relationship among certain quantities. |

Function | A relation in which each element of the input is paired with exactly one element of the output according to a specified rule. |

Function Rule | A expression that describes the relationship between each input and output. |

Function Table | A table organizing the input,rule, and output of a function. |

Numerical Expression | A combination off numbers and operations. |

Order of Operations | The rule that tell which operation to preform first when more than one opertation is used |

Power | A number that can be expressed using an exponent . |

Prime Factorization | A composite number exressed as a product of prime nuumber |

Prime Number | A number that is greater than zero |

Solution | the value of a variable that make an equation true . |

Solve | to replace a variable with a value that results in a true sentence |

Squared | a number multiplied by itself |

Variables | a symbol,usually a letter,used to represent a number. |

average | the sum of two or more quantities divided by the number of quantities;the mean. |

bar graph | a graph using bars to compare quantities. |

frequency | the number of times an item occurs. |

graph | a visual way to display data. |

horizontal axis | the axis on which the categories or values are shown in a bar and line graph. |

integers | the whole numbers and their opposites. |

key | a sample data point used to explain the stem and leaf plot. |

line graph | a graph used to show how a set of data changes over a period of time. |

line plot | a diagram that shows the frequency of data on a number line. |

mean | the sum of the numbers in a set of data divided by the number of pieces of data. |

measures of central tendency | numbers that are used to describe the center of a set of data.these measures include the mean,median,and mode. |

median | the middle number in a set of data when the data are arranged in numerical order. |

mode | the number(s) or item(s) that appear most often in a set of data. |

negative numbers | a number that is less than zero. |

opposites | numbers that are the same distance from zero in opposite direction. |

outlier | a value that is much higher or much lower than the other values in a set of data. |

positive number | a number that is greater zero. |

range | the difference between the greatest number and the least number in a set of data. |

stem-and-leaf plot | a system used to condense a set of data where the greatest place value of the data forms the stem and the next greatest place value forms the leaves. |

vertical axis | the axis on which the scale and interval are shown in a bar or line graph. |

Created by:
Melissa Baby