Learn the slope formula , the rise over run, and how to use it to calculate the steepness and direction of a line. See examples, graphs, and formulas for the point slope formula and the slope -intercept form. The slope of a straight line is a measure of the line’s steepness with reference to the horizontal and tells you whether it rises or falls. The slope formula is used to estimate the steepness or inclination of a line from the horizontal. After reading this formal definition, the first question arises: What is this steepness or inclination? The slope formula of the line shows how inclined the line is and to calculate the slope of lines we use the x and y coordinate of the line. Learn how to calculate the slope of a line using the formula m = y2 - y1 / x2 - x1, and how to interpret its meaning and types. See solved examples of finding the slope from two points, an equation, or a graph.
