Question

Find an explicit formula for the arthimetic sequence -11,-3,5,13.....
b(n)=​

Answer 1

Answer:

$b(n) = 8n - 19$

Step-by-step explanation:

$a = - 11 \\ d = - 3 - (11) \\ = - 3 + 11 \\ = 8 \\ \\ \\ b(n) = a + (n - 1)d \\ = - 11 + (n - 1)(8) \\ = - 11 + 8n - 8 \\ = 8n - 19$