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10. [8]Justify whether each is a function or not. a(x) b(x) = tvx - 1 d(x) = {(0,1), (1,2), (2,3), (2,4)} X c(X 2 3 5 6 8 11. [24] State the domain and range for each of the following. a. a = {(2,3), (3,4), (4, -10)} g(x) = 7 sinx+ 1 b. b(x) = +1 g. h(x) = x2 + 8x + 1 c. c(x) = 2 3(x - 1) + 4 h. i(x) = 2*-1 +2 d. d(x) = -|x -21 - 5 i. j(x) = log2(x - 1) + 2 e. e(x) = 2x + 3 j. x = 2 f. f (x) = 3 k. I(x) = (x2_4)