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13 Cards in this Set
- Front
- Back
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Direct Variation |
A linear relationship between two variables, x and y, that can be written in the form y=kx, where k is a nonzero constant constant. |
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Constant of Variation |
The constant k in direct and inverse variation equations. |
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Ordered Pair |
A pair of numbers that can be used to locate a point on a coordinate plane. |
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Proportional Relationship |
A relationship between two quantities in which of the ratio of one quantity to the other quantity is constant. |
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Rate of Change |
A ratio that compares the amount of change in a dependent variable to the amount of change in an independent variable. |
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Slope |
A measure of the steepness of a line on a graph; the rise divided by the run. |
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X-coordinate |
The first number in an ordered pair; it tells the distance to move right or left from the origin (0,0). |
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Y-coordinate |
The second number in an ordered pair; it tells the distance to move up or down from the origin (0,0). |
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Linear Equation |
An equation that contains two or more variables. |
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Slope-Intercept Form |
A linear equation written in the form y = mx + b, where m represents slope and b represents the y-intercept. |
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Solution of a System of Equations |
A set of values that make all equations in a system true. |
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System of Equations |
A set of two or more equations that contain two or more variables. |
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Y-intercept |
The y-coordinate of the point where the graph of a line crosses the y-axis. |
