The sign of the derivative
Example: Finding intervals of gradients
Example: Sketching a derivative graph from a function
Example 2: Sketching a derivative from a function
Example 3: Sketching a derivative graph from a function
Strictly increasing and decreasing
Strictly increasing and decreasing: A warning
Angle of the gradient of a curve at a point
Example 4: Using m equals tan theta
Example 2: Find the direction using m equals tan theta