Vamos là.
f(x) = 3x - 4
a) f(2) = 3*2 - 4 = 2
b) f(5) = 5*2 - 4 = 6
c) f(-1) = 3*(-1) - 4 = -7
d) f(2/3) = 3*2/3 - 4 = -2
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Vamos là.
f(x) = 3x - 4
a) f(2) = 3*2 - 4 = 2
b) f(5) = 5*2 - 4 = 6
c) f(-1) = 3*(-1) - 4 = -7
d) f(2/3) = 3*2/3 - 4 = -2