8. For a - c, determine whether function fA B is a one-to-one or onto function, or both (bijective/one-to-one correspondence). Justify your answer. a) b) c) A-{a, b, c} and B-(x, y, z} and f(a) y,f(b): z,f(c)-x. A-(a, b, c, d} and B-(x, y, z} and f(a)-z,/(b)-x,f(d)-y. A (a, b} and B-(x, y, z)and f(a)-a/tb)-y. 9. Suppose g:A ? B and f:B ? C, where A (a, b, c, d), B (1,2, 3, 4), C 12, 3, 6, 8), and g -(la, 2), (b, 1), (c, 3), (d, 2)) and f ((1,3), (2, 6), (3, 8), (4, 2) Find: a) fog b) f-1 Let fand g be functions from the set of integers to set of integers defined by: f(x) x +1x3+2 and g (x)x3+ 2. Find the composition functions: 10. a. (fog) b. o