Respuesta :

The answer of this question would be A:)
unicorn3125

Answer:

            A.   f(n) = -7 +4 (n-1)

Step-by-step explanation:

[tex]a_1=-7\,,\ a_2=-3\,,\ a_3=1\,,\ a_4=5\,,\ a_5=9...\implies d=4[/tex]

{-3-(-7)=4 and 1-(-3)=4 and 5-1=4 and 9-5=4}

An arithmetic sequence is:   [tex]a_n=a_1+(n-1)d[/tex]

[tex]a_1=-7\quad and\quad d=4[/tex]

[tex]a_n=-7+(n-1)\cdot4[/tex]

So:

      [tex]f(n)=-7+4(n-1)[/tex]

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