Question

dadas as funções f(x)=2x-3 e g(x)=x²-2

Determine o valor:
a) f(2)
b) f(-1)
c) g(0)
d) g(2)
e) f(3)+g(4)​

Answer 1

Resposta:

a) f(2) = 2.2 - 3 -> 1

b) f(-1) = 2.(-1) - 3 = - 2 - 3 -> -5

c) g(0) = 0² - 2 -> -2

d) g(2) = 2² - 3 = 4 - 3 -> 1

e) f(3)+g(4)​ = f(3) = 2.3 - 3 = 3 g(4) = 4² - 2 = 8 - 2 = 6 -> 3 + 6 = 9