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. |