Question

Dada a função f(x)=3x-3 determine:
a) f(3)
b) f(-3)
c) f(0)
d) f(x)=0
e) f(x)=6
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Answer 1

Respostas:

a) 3 × 3 - 3 = 6 [f(3) = 6]

b) 3 × (-3) -3 = -12 [f(-3) = -12]

c) 3 × 0 - 3 = -3 [f(0) = -3]

d) 3x - 3 = 0 >> x = 1 [f(1) = 0]

e) 3x - 3 = 6 >> x = 3 [f(3) = 6]