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DudaCS10
@DudaCS10
October 2020
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Me ajudemmm na 14, letra d, pfvrr! ( preciso do cálculo)
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Karla2
F(x) = 5x + 2
a. f(-2)
x= -2 então
f(-2) = 5.(-2) +2
f(-2) = -10 +2
f(-2) = -8
b. f(0)
f(0) = 5.(0) +2
f(0) = 2
c. f(-1)
f(-1) = 5.(-1) +2
f(-1) = -5 +2
f(-1) = -3
d. f(3/4)
f(3/4) = 5.(3/4) +2
f(3/4) = 5.(0,75) + 2
f(3/4) = 3,75 +2
f(3/4) = 5,75
espero ter ajudado, bons estudos!
1 votes
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brunossantos
Substitui o valor pelo x na fórmula, faz o mmc, corta o denominador, resultado é 68!
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DudaCS10
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Lista de comentários
a. f(-2)
x= -2 então
f(-2) = 5.(-2) +2
f(-2) = -10 +2
f(-2) = -8
b. f(0)
f(0) = 5.(0) +2
f(0) = 2
c. f(-1)
f(-1) = 5.(-1) +2
f(-1) = -5 +2
f(-1) = -3
d. f(3/4)
f(3/4) = 5.(3/4) +2
f(3/4) = 5.(0,75) + 2
f(3/4) = 3,75 +2
f(3/4) = 5,75
espero ter ajudado, bons estudos!