Here are the matched keywords with their definitions:
- y-axis - The vertical axis in a Cartesian coordinate system.
- y-intercept - A point where the graph of a function crosses the y-axis. A function has at most one y-intercept. This point on the line with equation y = mx + b is the point (0, b).
- slope-intercept equation - One way to write the equation of a line. It is shown as y = mx + b, where m is the slope and b is the y-coordinate of the line's y-intercept.