Question

Sendo f(x) = x^2 - 5x + 6, determine:

a) f(0), f(2), f(3) e f(4)

Answer 1

Vamos lá

Resolvendo:

f ( X ) = X² - 5X + 6
.

f ( 0 ) = 0² - 5 ( 0 ) + 6

f ( 0 ) = 0 - 0 + 6

f ( 0 ) = 6
.

f ( 2 ) = 2² - 5 ( 2 ) + 6

f ( 2 ) = 4 - 10 + 6

f ( 2 ) = - 6 + 6

f ( 2 ) = 0
.

f ( 3 ) =3² - 5 ( 3 ) + 6

f ( 3 ) = 9 - 15 + 6

f ( 3 ) = 0

f ( 4 ) = 4² - 5 ( 4 ) + 6

f ( 4 ) = 16 - 20 + 6

f ( 4 ) = 2