Date: 4. Use the function f(x) defined by the following graph. [T/I 2] y 1 4 2 -4 -3 -2 -1 0 2 3 4 Find the limit of the function f(x) as x approaches: a ) OLNW d) Communication (14 marks) Provide a complete solution to each question. Explain your idea using proper terminology. 5. Describe how you would find the intervals of concavity on a graph, point of inflection given the equation of a function and how you would use the second derivative to determine a local minimum maximum. [COM 5]