Intercepts
| When a point falls directly on the x- or y-axis, it is called an intercept. |
Intercepts are particularly useful when describing the graphs of lines.
The x-intercept falls directly on the x-axis and has coordinates (x, 0). That is because the x-coordinate can be any number, but the y-coordinate of the x-axis is always 0.
Similarly, the y-intercept falls directly on the y-axis and has coordinates (0, y). The y-coordinate can be any number, but the x-coordinate of the y-axis is always 0.
Look at the figure below.
A is y-intercept and B is an x-intercept.
