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MARIMOTTA66ON
Respondido

. Determine o dom´ınio da fun¸c˜ao f, definida por f(x) = 5x − 2 x + 4
. Calcule f(1), f(0) e f(1/2)

Resposta :

CTSOUZASILVAON

Resposta:

f(x) = 5x² − 2x + 4

D = IR

f(1) = 1² -2.1 + 4 = 1 - 2 + 4 = 3

f(0) = = 0² - 2.0 + 4 = 4

f(1/2) = (1/2)² - 2.1/2 + 4 = 1/4 + 4 = (1 + 14)/4 = 17/4

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