Simple Explanation of Stationary Points
Stationary points are when a curve is neither increasing nor decreasing at some points, we say the curve is stationary at these points. At stationary points, the gradient of the tangent (straight line which touches a curve at a point) to the curve is zero.
At stationary points, f¹ (x) = 0 or dy/dx = 0
At stationary points, f¹ (x) = 0 or dy/dx = 0