A vertical line has an undefined slope, since it would result in a fraction with 0 as the denominator.A line has a constant slope, and is horizontal when m = 0.A line is decreasing, and goes downwards from left to right when m A line is increasing, and goes upwards from left to right when m > 0.Given m, it is possible to determine the direction of the line that m describes based on its sign and value: The larger the value is, the steeper the line.
Generally, a line's steepness is measured by the absolute value of its slope, m. Slope, sometimes referred to as gradient in mathematics, is a number that measures the steepness and direction of a line, or a section of a line connecting two points, and is usually denoted by m.
