Visual explanation of slope and rate of change in linear equations, showing the formula y = mx + c and key components like gradient, slope, and y-intercept.
A hand-drawn educational diagram illustrating the concept of slope and rate of change in a linear equation y = mx + c, with labels for gradient, slope, y-intercept, and formulas for calculating slope as change in y over change in x or (y₁ - y₂)/(x₁ - x₂).