Question

Dada a função f(x)=4x-1 determine; a) f (x)=7 b) f (x)=0 c) f (x)=5

Answer 1

a) f(x)=4x-1
f(7)=4.7-1=28-1=27

b)f(x)=4x-1
f(0)=4.0-1=0-1=-1

c) f(x)=4x-1
f(5)=4.5-1=20-1=19

Answer 2

Ola Luiza

a)
4x - 1 = 7
4x = 8
x = 2

b)
4x - 1 = 0
4x = 1
x = 1/4

c)
4x - 1 = 5
4x = 6
x = 6/4 = 3/2

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