Answer:
![\displaystyle a_n = a_(n - 1) + 7](https://img.qammunity.org/2020/formulas/mathematics/high-school/ky4cqorcw4rzwk57xxyp47tnfnohrmuugd.png)
![\displaystyle 4, 7, 10, 13, 16](https://img.qammunity.org/2020/formulas/mathematics/high-school/9gohjhw07w0ou8um4976i87k4kndn5zumc.png)
Explanation:
A recursive formula is just a computation of all previous term in a sequence, in order to find value of
So, here is the recursive formula for arithmetic sequences:
![\displaystyle a_n = a_(n - 1) + d \\ \\ a_n = a_(n - 1) + 7](https://img.qammunity.org/2020/formulas/mathematics/high-school/vplog6zskp4ibensyfr3j21s73fhfbp4r6.png)
I hope that the first answer is correct, and as always, I am joyous to assist anyone at any time.