Respuesta :

[tex]a_{n} = a_{1} + d(n - 1)[/tex]   a₁ is the first term, d is the difference, and n is the term

a₁ = -5

d = -5

[tex]a_{n} = -5 - 5(n - 1)[/tex]

[tex]a_{n} = -5 - 5n + 5[/tex]  

[tex]a_{n} = -5n[/tex]            explicit formula

[tex]a_{n} = -5a_{n-1}[/tex]       recursive formula