| A | B |
|---|
| Coordinate Plane | a plane formed by two real number lines that intersect at a right angle. |
| Direct Variation | described by the equation y = kx, when k is not zero. |
| Function Notation | a way to name a function that is defined by an equation. The symbol f(x) replaces y and is read "f of x". |
| Graph of an Equation in two Variables | the set of all points (x , y) that are solutions of the equation. |
| Rate of Change | a comparison of two different quantities that are changing. Slope is an example. |
| Scatter Plot | a graph of pairs of numbers that represent real-life situations. It is a way to analyze the relationship between two quantities. |
| Slope | the number of units a nonbertical line rises or falls for each unit of horizontal chnge from left to right. |
| Slope-intercept form | a linear equation written in the form y = mx + b. |
| x- intercept | the x-coordinate of a point where a graph crosses the x-axis. |
| y-intercept | the y coordinate of a point where a grahp crosses the y-axis. |
