Question

Dada a função f : |R ⇒ |R definida por f (x) = 3x + 1 , calcule ;

A) f (-2) =

B) f $( \frac{1}{3} )=$

Answer 1

A)
f(-2) = 3(-2) +1
f(-2) = -6+1
f(-2) = -5

B)
f(1/3) = 3(1/3)+1
f(1/3) = 1+1
f(1/3) = 2