Pull point A along the function.
Step 1: Make note of the slope of the line that is tangent to the function at point A. For which inputs is the slope of the line increasing? Decreasing? Zero? Undefined?
Step 2: Using what you have learned about derivatives, try to find the derivative of this function.

Pull point A along the function.
Step 1: Make note of the slope of the line that is tangent to the function at point A. For which inputs is the slope of the line increasing? Decreasing? Zero? Undefined?
Step 2: Using what you have learned about derivatives, try to find the derivative of this function.