3. Using the given graph of the function f(x) , answer the following questions. Write N/A if it doesn't exist or can't be determined. Use interval notation where appropriate. a) Give the largest interval of increase on f (x). b) Give the largest interval of decrease on f (x). c) Give the largest interval over which f (x) is constant. d) Give the domain of f (x). e) Give the range of f (x). -5 () Give the largest interval over which f (x) is concave down. g) Give the largest interval over which f (x) is concave up. f( x) = h) The given graph is which toolkit function? 4. i) Using the given graph, give the largest interval over which the average rate of change is increasing. ii) Write a complete sentence explaining how you know. -15