Question

Please help me thank you!

Answer 1

• a(1) = 11
• a(n) = 4 + a(n-1)

Explanation:

The first term shown is 11. The terms have a common difference of 15 -11 = 4.

These values let you write the recursive formula:

`a_1=11\\a_n=4+a_(n-1)`

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The common difference is added to the previous term to find the current term.