Drag the Blue Dot along the curve. The line represents the slope at that exact point.
💡 Try this: Drag to x ≈ 0. Notice the slope is nearly zero—this is the minimum of x²!
As h → 0, difference → 0
The derivative is the "steepness" of the curve at a single point. Watch how the color changes:
🤖 ML Connection: Gradient descent steps opposite to the derivative. Positive slope → decrease x. Negative slope → increase x. This moves toward the minimum!