Question

Doar b, c, d, e, f.. Va rog!!!!

Answer 1

Răspuns:

Explicație pas cu pas:

f : {0; 1; 4; 5; 11}

f(x) = 4x + 7

f(0) = 7; f(1) = 4 + 7 = 11; f(4) = 16 + 7 = 23; f(5) = 20 + 7 = 27; f(11) = 44 + 7 = 51

Im f = {7; 11; 23; 27; 51}

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f : {-1; 0; 3; 5; 8}

f(x) = -x + 6

f(-1) = 1 + 6 = 7; f(0) = 6; f(3) = -3 + 6 = 3; f(5) = -5 + 6 = 1; f(8) = -8 + 6 = -2

Im f = {7; 6; 3; 1; -2}

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f : {0; 1; 2; 3; 4; 5}

f(x) = 10x - 3

f(0) = -3; f(1) = 10 - 3 = 7; f(2) = 20 - 3 = 17; f(3) = 30 -3 = 27; f(4) = 40 - 3 = 37; f(5) = 50 - 3 = 47

Im f = {-3; 7; 17; 27; 37; 47}

____________

f : {1; 5; 4; 3; 6}

f(x) = x2

Im f = {12; 52; 42; 32; 62}

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f ; {4; 8; 12; 16; 20}

f(x) = x : 4 - 5

f(4) = 1 - 5 = -4; f(8) = 2 - 5 = -3; f(12) = 3 - 5 = -2; f(16) = 4 - 5 = -1; f(20) = 5 - 5 = 0

Im f = {-4; -3; -2; -1; 0}