Question

Calcule os valores de p e q se P(x)= p.x+q e P(1)= 3 e P(3)= 1.

Answer 1

Resposta:

P(1)=p+q=3 (i)

P(3)=3p+q=1 (ii)

(i)-(ii)

-2p=3-1

p=-1

Sendo p=-1==> -1+q=3  ==>q=4