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Math 7
Chapter 1
| Term | Definition |
|---|---|
| Complex Fraction | A fraction a/b where a and b are fractions and b does not equal zero |
| Constant of Proportionality | A constant ratio or unit rate of two variable quantities. It also is called the constant of variation |
| Constant of Variation | The constant ratio in a direct variation. It is also called the constant of proportionality |
| Coordinate Plane | A plane in which a horizontal number line and a vertical number line intersect at their zero points |
| Cross Products | The product of the numerator of one ratio and the denominator of the other ratio. The cross products of any proportion are equal |
| Dimensional Analysis | The process of including units of measurement when you compute |
| Direct Variation | The relationship between two variable quantities that have a constant ratio |
| Equivalent Ratios | Two ratios that have the same value |
| Nonproportional | The relationship between two ratios with a rate or ratio that is not constant |
| Proportional | The relationship between two ratios with a constant rate or ratio |
| Ordered Pair | A pair of numbers used to locate a point in the coordinate plane. An ordered pair is written in the form (x-coordinate, y-coordinate) |
| Origin | The point at which the x-axis and y-axis intersect in a coordinate plane. The origin is (0,0) |
| Quadrants | One of four regions into which the two perpendicular number lines of the coordinate plane separate the plane |
| Rate | A ratio that compares two quantities with different kinds of units |
| Rate of Change | A rate that describes how one quantity changes in relation to another. A rate of change is usually expressed as a unit rate |
| Slope | The rate of change between any two points on a line. It is the ratio of vertical change to horizontal change. The slope tells how steep the line is |
| Unit Rate | A rate that is simplified so that is has a denominator of 1 |
| X-axis | The horizontal number line in a coordinate plane |
| Y-axis | The vertical number line in a coordinate plane |