Linear Function:A linear function is a function that can be expressed in the form $y = mx + b$, where $m$ is the slope and $b$ is the $y$-intercept. Linear functions have a constant rate of change, represented by the slope.
Rise over Run: The rise over run is another way to express the slope of a line, calculated as the change in the $y$-coordinate (rise) divided by the change in the $x$-coordinate (run) between two points.
Point-Slope Form:The point-slope form of a linear equation is $y - y_1 = m(x - x_1)$, where $(x_1, y_1)$ is a known point on the line and $m$ is the slope of the line.