This problem deals with the "mechanical aspects" of working with the rule of a function. For each of the functions listed in (a)-(c), calculate: ro), 尤-2), fix + 5), 尤α), 尤α + Δ) (a) The function fx)-(x - 5) on the domain of all real numbers. r-2) = (b) The function fx) - 3x2 - 15x on the domain of all real numbers. ro) = -2) = ra) = (c) The functionfx) - 5T2. ro) = -2) =