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Find the equations of the tangent line and normal lines to the graph of the function t) 2 et + 4 at t = 0. a) Tangent line: 3; : b) Normal line: 3; = (1 point) Compute the derivative of the given function. f(t) = In(7) + e + sin 7/5 f' (t)(1 point) Below is the graph of the derivative f (a) of a function defined on the interval (0,8). You can click on the graph to see a larger version in a separate window. Refer to the graph to answer each of the following questions. For part (A), use interval notation to report your answer. (If needed, you use U for the union symbol.) (A) For what values of a in (0,8) is f(a ) concave down? (If the function is not concave down anywhere, enter "{}" without the quotation marks.) Answer: (B) Find all values of a in (0,8) is where f( ) has an inflection point, and list them (separated by commas) in the box below. (If there are no inflection points, enter -1000.) Inflection Points