Question

1) Encontre o zero das funções a seguir: ax+b=0
A) f(x) = x+5
B) f(x) = -3x+9
C) f(x) = 2-3x
D) f(x) = -2x+10
E) f(x) = -5x
F) f(x) = 4x

Answer 1

Olá

Bom,

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• A)

f(x) = x + 5

f(-5) = (-5) + 5

f(-5) = 0

R f(-5)

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•B)

f(x) = -3x + 9

f(3) = -3(3) + 9

f(3) = (-9) + 9

f(3) = 0

R) f(3)

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•C)

f(x) = 2 - 3x

f(2/3) = 2 - 3(2/3)

f(2/3) = 2 - 2

f(2/3) = 0

R) f(2/3)

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•D)

f(x) = -2x + 10

f(5) = -2(5) + 10

f(5) = (-10) + 10

f(5) = 0

R) f(5)

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•E)

f(x) = -5x

f(0) = -5(0)

f(0) = 0

R) f(0)

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•F)

f(x) = 4x

f(0) = 4(0)

f(0) = 0

R) f(0)

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Qualquer dúvida me avise

Ass: MarcosPCV