Identifying Points of Non-Differentiability in a Piecewise Function
Consider the function defined by: – For x < -1, f(x) = x + 2. – For -1 \(\le\) x < 1, f(x) = |x|. – For x \(\ge\) 1, f(x) = x^(2/3). Determine all the points at which f is not differentiable. Provide a brief explanation for each point.