Question

Write a recursive formula for the sequence. 2.3, 2.8, 3.3, 3.8...

Answer 1

Hello :
3.8-3.3 =3.3-2.8=2.8-2.3=0.5 (common diffrence)of aritmetic sequence
a recursive formula for the sequence is : An+1=An +0.5

Answer 2

$a_{n+1}=a_{n} + 0.5 ;a_{1}=2.3$