Question

Dada a função y = 2x² – 6x – 4, determine f(0) – f(1).

Answer 1

Oie, Td Bom?!

• Seja a função:

$f(x)= 2x {}^{2} - 6x - 4$

• x = 0.

$f(0) = 2 \: . \: 0 {}^{2} - 6 \: . \: 0 - 4$

$f(0) = 2 \: . \: 0 - 0 - 4$

$f(0) = 2 \: . \: 0 - 4$

$f(0) = 0 - 4$

$f(0) = - 4$

• x = 1.

$f(1) = 2 \: . \: 1 {}^{2} - 6 \: . \: 1 - 4$

$f(1) = 2 \: . \: 1 - 6 - 4$

$f(1) = 2 - 6 - 4$

$f(1) = 2 - 10$

$f(1) = - 8$

• Calculando f(0) - f(1):

$= f(0) - f(1)$

$= - 4 - ( - 8)$

$= - 4 + 8$

$= 4$

Att. Makaveli1996