A linear function is a mathematical function with an equation in the form y = mx + b, where m represents the slope (rate of change) and b represents the y-intercept (the point where it crosses the y-axis).
Related terms
Slope: The rate at which a line rises or falls; it indicates how steep or gradual the line is.
Y-intercept: The point where a line intersects with the y-axis.
X-intercept: The point(s) where a line intersects with the x-axis.