# What is the slope of a line?

The slope of a line is also sometimes called the gradient of a line.

## Answer: The slope of a line is the ratio of change in y-coordinate to change in x-coordinate of that line.

Let us learn more about the slope of a line.

**Explanation:**

The slope of a line is nothing but the change in the y coordinate with respect to the change in the x coordinate of that line. It is denoted by m.

m = Δy / Δx

The slope of a line is also defined as the measure of the tangent of the angle made by the line with the x-axis.

m = tanθ = (y_{2} - y_{1}) / (x_{2} - x_{1}) where (x_{1}, y_{1}) and (x_{2}, y_{2}) are two points on the line.

The slope is constant throughout a straight line. A line can be positive slope, negative slope, zero slope, and undefined Slope.