a) Determine the following values: (−4), (0), (4), (6), (8)b) On what intervals is () increasing? Decreasing?c) On what open intervals is () concave up and decreasing?d) For what values of , if any, does () have points of inflection?e) Find the equation of tangent line to () at = 6.f) Determine the range of ().g) Draw the graph of ().Student Guide (continued)2. Let ℎ() = (3).a) Evaluatelim→2ℎ()/ − 2.b) Find the equation of the tangent line to ℎ() at = 1.c) Find ℎ′(0).