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8th Math 2nd 9Weeks
Algebra
| Term | Definition |
|---|---|
| Ratio | A comparison of two numbers by division. |
| Rate | A comparison of two quantities with different types of units. |
| Unit Rate | A rate with a denominator of 1. |
| Proportion | Two equivalent ratios. |
| Cross Products | Two numbers that sit diagonally to each other. |
| Polygon | Closed plane figure formed by three or more line segments. |
| Similar | Polygons with the same shape and a different size. |
| Corresponding Parts | Parts in similar figures that match. |
| Congruent | Having the same measure. |
| Scale Factor | Ratio of the lengths of two corresponding sides of two similar polygons. |
| Scale Drawing or Model | Represents an object that is too large or too small to be drawn or built at actual size. |
| Scale | Ratio of given length to corresponding actual length. |
| Indirect Measurement | Distances or lengths that are too difficult to measure directly and can be found using properties of similar polygons and proportions. |
| Percent of Change | A ratio that compares the change in a quantity to the original amount. |
| Markup | The increase in the price. |
| Selling Price | The amount the customer pays. |
| Interest | The amount of money paid or earned for the use of money. |
| Principal | The amount of money invested or borrowed. |
| Equivalent Expressions | Expressions that have the same value. |
| Term | Each individual part of an algebraic expression separated by a plus or minus sign. |
| Coefficient | The numerical value attached to a variable. |
| Like Terms | Terms that contain the same variable and/or exponent. |
| Unlike Terms | Terms without the same variable and/or exponent. |
| Constant | A numerical term without a variable attached to it. |
| Simplest Form | An expression containing no like terms. |
| Relation | An equation that describes a function. |
| Domain | The x values in the ordered pair. |
| Range | The y values in the ordered pair. |
| Function | A relation in which the x value has only one partner. |
| Vertical Line Test | A test done vertically in which you pass through only one given point at a time. |
| Function Rule | An equation that describes a function. |
| Independent Variable | The input values. |
| Dependent Variable | The output values. |
| Rate of Change (Slope) | The change in a dependent variable as it relates to the change in the independent variable. |
| Slope Intercept Form | Linear equation written in the form y = mx+b. |
| x-intercept | The point where a line or coordinate crosses the x-axis. |
| y-intercept | The point where a line or coordinate crosses the y-axis. |
Created by:
tamarablyons
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