Relier Pairs Lesson 22 VocabularyVersion en ligne Match the vocabulary term, definition, and example. par Tracy Harrison 1 Rate: A ratio tells the number of units of one quantity for 1 unit of another quantity. Rates are often expressed using the word per. 2 Increase 3 Axis: A horizontal or vertical number line that determines a coordinate plane. The plural form is axes. 4 Decrease 5 Dependent Variable: A variable whose value depends on the value of a related independent variable. 6 Variable: A letter that represents an unknown number. In some cases, a variable may represent more than one number. 7 Depend on 8 Independent Variable: A variable whose value is used to find the value of another variable. An independent variable determines the value of a dependent variable. 9 Ordered Pair: A pair of numbers, (x, y), that describes the location of a point in the coordinate plane. The x-coordinate gives the point’s horizontal distance from the y-axis, and the y-coordinate gives the point’s vertical distance from the x-axis. To become smaller in size or lesser in value. To become larger in size or greater in value. To be determined by something.