Question

Calcule f(1/5) nas seguintes funções : 
a) f(x) = -3x+2



b) f(x) = 1-5/2x



Ajuda pliz :3

Answer 1

$a) f( \frac{1}{5} ) = - 3 \frac{1}{5} + 2 = - \frac{3}{5} + 2 = \frac{7}{5}$


$b) f( \frac{1}{5} ) = 1 - \frac{5}{2} . \frac{1}{5} = \frac{1}{2} = 0,5$

Answer 2

A) f(1/5) = -3*1/5 + 2
= -3/5 + 2
= 7/5
b) f(1/5)= 1-5/2*1/5
= -5/10