5.1 Gradient of a Straight Line Posted on April 23, 2020 by user 5.1 Gradient of a Straight Line The gradient of a straight line is the ratio of the vertical distance to the horizontal distance between any two given points on the straight line. Gradient, m = Vertical distance Horizontal distance Example: Find the gradient of the straight line above. Solution: Gradient, m = Vertical distance Horizontal distance = 4 units 6 units = 2 3