Question

Na função de R -> R, definida por F(x)= 3x + 1, calcule f(235) - f(122) sobre 106

Answer 1

F(x)=3x+1
F(235)=3.235+1=706
F(122)=3.122+1=367
706-367/106=339/106=3,2

Answer 2

$f(x)=3x+1$
Faremos $x=235$ e $w=122$
Queremos:
$\frac{f(x)-f(w)}{106}$
$\frac{(3x+1)-(3w+1)}{106}$
$\frac{3x+1-3w-1}{106}$
$\frac{3x-3w}{106}$
$\frac{3(x-w)}{106}$
$\frac{3(235-122)}{106}$
$\frac{3(113)}{106}$
$\frac{339}{106}$
Ou,
≈ $3,198$