Chapter 1
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Created by:
abraham_chad on September 1, 2010
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20 terms
Terms | Definitions |
|---|---|
Bar Graph | A graph that uses bars to represent and compare data. |
Data | Facts, numbers, or numerical information. |
Frequency Table | A table that organizes data into intervals. |
Histogram | A graph where data are organized into equal intervals |
Numerical Expression | An expression with numbers and operations. |
Evaluate | To find the value of an expression. (Solve) |
Order of Operations | A set of rules for evaluating an expression involving more than one operation. |
Vebal Model | A word equation that represents a real-world situation. |
Variable | A symbol, usually a letter, that is used to represent numbers. (x) |
Variable Expression | An expression that consists of numbers, variable, and operations. |
Power | A product formed from repeated multiplication by the same number or expression. |
Exponent | A number or expression that represents how many times the base is used as a factor. |
Base | The number or expression that used as a factor in repeated multiplication. |
Equation | A mathematical sentence with an equal sign between two expressions. |
Solution | A number that when substituted for a variable makes the equation true. |
Solving an equation | Finding all the solutions of an equation. |
Formula | An equation that relates two or more quantities. |
Perimeter | The sum of the lengths of a figure's sides. |
Area | The amount of surface that a figure covers. |
Unit Analysis | Evaluate expressions with units of measure and check that your answer uses the correct units. |
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