Question

Se f (x)= x+2, calcule f (1).
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2x-1

Answer 1

f (x) = x+2
f (1) = 1+2
f (1) = 3
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f (x) = 2x-1
f (1) = 2.1-1
f (1) = 2-1
f (1) = 1


espero ter ajudado :)