12x (Dc-132 and specify the points of local extrema showing application of the first derivative test. 1. Find the intervals on which the graph of f(x) = is increasing or decreasing Summary of the Answer: function f(x) increases at function f(x) decreases at at x = the function f(x) achieves its local max/ min (circle the correct one), which is 2. Find inflection points of f(x) = 0.63:5 4x3 + 1 and specify intervals of concavity. Summary of the Answer: function f(x) is concave upward at ; function f(x) is concave downward at ; the points of inflection of at) are at x = where the function is equal