Every straight line on a graph has a secret identity a single equation that describes it perfectly! The equation y = mx + c captures two essential facts about any straight line: how steep it is (m, the gradient) and where it crosses the y-axis (c, the y-intercept). Knowing these two facts lets you draw the line, predict any point on it, or read its equation straight from a graph. Today we master writing and interpreting line equations from graphs, coordinates, and word descriptions. Quick question: what does the c in y = mx + c tell you about the line? Think first then let us find out!
25/05/2026, 17:40:53
