Question

Sendo P(x)=3x+1 e T(x)=4x-2, calcule k tal que P(k)=T(k)
a) k = -3
b) k = 3
c) k = 3/7
d) k = -3/7
e) k = 0

Answer 1

Resposta:

Alternativa b)

Explicação passo-a-passo:

P(x)=3x+1 => P(k)=3k+1

T(x)=4x-2 => T(k)=4k-2

P(k)=T(k)

3k+1=4k-2

4k-3k=1+2

k=3