Respuesta :

Answer:

The 5th term.

Step-by-step explanation:

a3 = a1 + 2d = 4

a9 = a1 + 8d = -8

Subtracting :

6d = -12

d = -2

So it's the 5th term because:

  a5 = a3 + 2(-2)

= 4 - 2(2) = 0

Otras preguntas