RELAZIONI E FUNZIONI x+1 a. y = _____ x 1 b. y = 1 __ x 1 __ 19 a. y = 2 x 1 b. y = __2 1 x 2 20 y = _____ x 1 18 21 2x + 1 y = ______ 5 2x 22 y = 2x + 1 23 y = 2x + 1 24 y = 2 x + 1 ______ __ _____ 39 [R0; R0] [a. R0; b. R0] [R {1}] _5_ [R {2}] 1 x R, x __ [{ 2}] 25 y= 4 2 _____ 26 y = 2 3 x 27 y = x + x 28 a. y = x___ b. y = x _ 36 5 5x y = __________ 3 x + 2x2 + x 37 x3 2x 2 x 2x y = ___________ x2 + 5x + 13 x2 x + 1 38 y = _________ x2 x + 2 70 x2 + 5x + 4 y = __________ x2 6x + 5 43 x2 25 y = ___________ x2 9x + 18 44 y = 2 x2 + x y = x2 + 4 [{x R x 0}] [R+ {0}; R] [R { 1, 1}] [R {2, 5}] [R {0, 2}] 3 3 R __, __ { 2 2}] [ _ [R {0,  2 , + 2}] [R {0, 1}] [R] [R { 3, 6}] [{x R, x 1 o x 0}] [R] ______ [{x R x 2 o x 2}] ______ [R] 1 ______ y = _______ x + 1 2 ______ 49 y = _______ x2 4 4 ______ 50 y = _______ 9 x2 1 ______ 51 y = _______ 2 x + 1 [{x R, x > 1}] [{x R x 2}] [{x R, 3 2}] 53 _____ [{x R, x 1}] [{x R 2 < x < 2}] ______ 55 y = x 1 + 2x 3 56 y = 4x + 5 + 2 x ______ ______ _3_ [{x R, x 2}] [mai definita in R] ______ 57 x2 + 1 y = ______ x2 58 y = 4 x2 2x [R] _ [R {1, 5}] 48 52 [R; R { 1, 1}] [R { 2, 0, 1}] _______ 47 [{x R x 3}] [R {2, 10}] _____ y = x2 4 x +x+1 y = _________ x2 + 1 35 42 46 2 5x + 1 y = _______ x2 7x + 10 y = ___________ x3 + x2 2x [x R, x 1] 29 34 41 y = 3x2 + 1 _ 1 a. y = ______ x2 + 1 1 b. y = ______ 2 x 1 2 +1 2x 30 y = _______ 2 x 1 3x + 1 31 y = ___________ x2 7x + 10 1 3x 32 y = _______ x3 + 2x2 x2 33 y = _______ 4x2 9 x2 8x + 7 x 12x + 20 45 [{x R x 2}] [R {0, 1}] 40 y = ____________ 2 [x R x 0] _____ _x_ _1_ 5x 2 y = ______ x2 x [R0] ______ __ ______ ______ [{x R, 0 x 2}] 59 y = x2 8 + 1 x2 60 y = x2 x + x + 5 [{x R 5 x 0 o x 1}] 61 x2 x _____ y = _______ x + 5 [{x R, 5 < x 0 o x 1}] x2 x y = ______ x+5 [{x R 5 < x 0 o x 1}] _____ _____ [mai definita in R] _____ ______ [R] 62