The slope is a measure of the steepness of a line, or a section of a line, connecting two points. In this lesson, you will use several different formulas for slope and learn how those formulas relate to the steepness of a line.o, the slope of the line segment (the slope between the two points) is m = 3/2. In mathematics class, you may memorize a formula to help you get the slope. The formula looks like this: This formula is really the same thing as we used before. The top says to take the two y-values and subtract them.