# Slope of a Line

**Slope of a line**is defined as the measure of the steepness of a line. The higher is the value of slope, the steeper is the line inclined. It is also known as a gradient. Usually, slope of the line is denoted by the letter m. If a line goes upward to the right, then the slope of the line is said to be positive.

If the line goes downward, then the slope of the line is said to be negative. Also, when it is a horizontal line then the slope is zero and for a vertical line, the slope is infinity.