Question

1) Determine o valor da função f(x) = - 2x + 3 para:

a) X = 2 b)X = 1/2 c) X= 01 d) X = k + 2​

Answer 1

Resposta:

a) f (2) = -2.(2) + 3

f (2) = - 4 + 3

f (2) = - 1

b) f (1/2) = - 2.(1/2) + 3

f (1/2) = - 1 + 3

f (1/2) = 2

c) f (1) = - 2.(1) + 3

f (1) = - 2 + 3

f (1) = 1

d) f (k+2) = - 2.(k +2) + 3

f (k+2) = - 2k - 4 + 3

f (k+2) = - 2k + 1