Question

What is the nth term rule of the linear sequence below?

Answer 1

Answer:

$T _{n} = a + (n - 1)d \\ T _{n} = 13 + (n - 1) \times - 6 \\ T _{n} = 13 - 6(n - 1) \\ T _{n} = 13 + 6(1 - n)$