Respuesta :

boldeagle
It increases by 7 and it's arithmetic progression:
Where d = 7
a = 2

and the formula will be

[tex] a_{n} [/tex] = a + d (n-1) = 2 + 7*(n-1)

Where n starts from 1 and continues to the infinity
klee48
This is an arithmetic sequence which means all of these terms are all the same distance from one another. 
an=a1+d(n-1)
an=2+7(n-1)
an=2+7n-7
Answer: an=7n-5

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