+1 2. Let f'(x) = 7*#31-4. Assume the domain of f is (-00,-1) 0 (-1,00). Note you are being given the derivative off but asked questions about f itself. (a) Find the intervals where f is increasing and decreasing. Identify the relative extrema. (b) Find the intervals where f is concave up and down and identify any inflection points. (c) Assume lim,+-1-f(x) = lim, --1+ f(x) = oo and f(-4) = 1 and f(1) = 2. Sketch a graph of f