Question

Write a simplified expression for the right half of the equation that can be used to find the nth term in the sequence 9,10,11,12,13

Answer 1

$\begin{gathered} \text{From the sequence we have:} \\ a\text{ = 9, d = 1} \\ usingT_n\text{ }=\text{ a +(n-1)d} \\ \text{ T}_n\text{ = 9 + (n-1)1} \\ \text{ = 9 + n - 1} \\ \text{ = 8 + n} \\ \end{gathered}$