Question

Dada a função f(x) = 2x2 – 3x + 12. Calcule

f(0)=

f(4)=

f(-2)=

f(2/3)=

Answer 1

Resposta:

f(x) = 2x² – 3x + 12

f(0) = 2.0² - 3.0 + 12 = 12

f(4) = 2.4² - 3.4 + 12 = 2.16 - 12 + 12 = 32

f(-2) = 2.(-2)² - 3(-2) + 12 = 2.4 + 6 + 12 = 14 + 12 = 26

f(2/3) = 2.(2/3)² - 3.2/3 + 12 = 2.4/9 - 2 + 12 = 8/9 + 10 =98/9