| A | B |
|---|
| coordinate system | graph with two axis |
| origin | (0,0) |
| quadrants | y-axis and x-axis meet to form four of these. |
| relation | set of ordered pairs forms this |
| domain | set of first members in the ordered pair |
| range | set of second members of the ordered pair |
| function | relation in which each element of the domain is paired with exactly one element of the range. |
| linear equation | An equation whose graph is a line. |
| Standard Form | Ax + By = C |
| linear function | defined by f(x) = mx + b, where m and b are real numbers |
| slope | ratio of the vertical change to the horizontal change. |
| equation for slope | m = (y2 - y1) / (x2 - x1) |
| parallel lines | lines with the same slope |
| perpindicular lines | two nonvertical lines with their product of their slopes being -1. |
| x-intercept | point where graph crosses x-axis |
| y-intercept | point where graph crosses the y-axis |
| scatter plot | cluster of points in a linear pattern |
| prediction equation | an equationdetermined using the best-fit line. |
