5. Let f : R - R, f(x) =x2. (a) Sketch the graph of f. (b) What is the range of f? (c) Let S = {-5, -4, 0, 1, 5, 9). Compute f[S]. (d) Let 7' = {-9, -7, 0, 1, 7, 16). Compute f [7'] (e) Let S = [-1, 4), a half-open interval. Compute f[S]. (f) Let T' = (3, 25]. Compute f [71