Respostas

2014-03-06T10:13:38-03:00
f(x) = -3x+2

a) f(x) =0
f(0) = -3(0) +2
f(0) = 0 +2
f(0) = +2

b) f(x) =11
f(11) = -3(11) +2
f(11) = -33 +2
f(11) = -31

c) f(x) = -1/2
f(-1/2) = -3 (1/2) + 2
f(-1/2) = -1,5 +2
f(-1/2) = 0,5


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