Question

Seja a função f(x)=-5x+6. Determine, respectivamente, os valores de f(1), f(2), f(3), f(-5).
(a) 1, 4, -9, 31
(b) -1,-4,12,21
(c) 1,-4,-9,31
(d) 1, -3, 10,31
(e) 1, -4, 9, 0 ​

Answer 1

(c) 1,-4,-9,31

f(1)= -5.1+6

f(1)= -5+6

f(1)= 1

f(2)= -5.2+6

f(2)= -10+6

f(2)= -4

f(3)= -5.3+6

f(3)= -15+6

f(3)= -9

f(-5)= -5.-5+6

f(-5)= 25+6

f(-5)= 31

Answer 2

Resposta: (c) 1, -4, -9, 31

Explicação passo a passo:

f(1) = -5.1 + 6

f(1) = -5 + 6

f(1) = 1

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f(2) = -5.2 + 6

f(2) = -10 + 6

f(2) = -4

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f(3) = -5.3 + 6

f(3) = -15 + 6

f(3) = -9

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f(-5) = -5.(-5) + 6

f(-5) = 25 + 6

f(-5) = 31