Gradient (Slope) of a Straight Line https://www.youtube.com/watch?v=KFsfyg0t70sThe straight line is a curve such that every point on the line segment joining any two points on it lies on it. The simplest locus of a point in a plane is a straight line. A line is determined uniquely by any one of the following:Two different points (because we know the axiom that one … [Read more...] about Gradient (Slope) of a Straight Line