The graph of a function f is given. Use the graph to estimate the following. y 1 X (a) All the local maximum and minimum values of the function and the value of x at which each occurs. local maximum (x, y) = local minimum ( x, y ) = (smaller x-value) local minimum ( x, y ) = (larger x-value) (b) The intervals on which the function is increasing and on which the function is decreasing. (Enter your answers using interval notation.) increasing decreasing