Question

Encontre o zero da função f(x)= 2x-18

( )x= -4
( )x= 9
( )x=-9
( )x= 18
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Answer 1

Oie, Td Bom?!

>>> Resposta: (x) x = 9.

$f(x) = 2x - 18$

$0 = 2x - 18$

$- 2x = - 18$

$x = \frac{ - 18}{ - 2}$

$x = \frac{18}{2}$

$x = 9$

Att. Makaveli1996