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Math Ch 1 Vocab
Question | Answer |
---|---|
complex fraction | A fraction A/B where A or B are fractions and B does not equal 0. |
constant of proportionality | A constant ratio or unit rate of two variable quantities. It is also called the constant of variation. |
constant rate of change | The rate of change in a linear relationship. |
coordinate plane | A plane in which a horizontal number line and a vertical number line intersect at their zero points. Also called a coordinate grid. |
cross products | The product of a numerator of one ratio and the denominator of another ratio. |
direct variation | The relationship between two variable quantities that have a constant ratio. |
equivalent ratios | Two ratios that have the same value. |
proportion | An equation stating that two ratios or rates are equivalent. |
ordered pair | A pair of numbers used to locate a point in the coordinate plane. It is written in the form (x-coordinate, y-coordinate). |
origin | The point at which the x-axis and the y-axis intersect in a coordinate plane. It is at (0,0). |
quadrants | One of the 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. It 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. It tells how steep the line is. |
unit rate | A rate that is simplified so that it has a denominator of 1 unit. |