Question

The first term of a sequence is 13

the term-to-term rule is 'takeaway 5'
work out the 4th term

Answer 1

- 2

Explanation:

Using the term- to - term rule of subtract 5

This means to find a term in the sequence, subtract 5 from the previous term.

Given a(1) = 13, then

a(2) = a(1) - 5 = 13 - 5 = 8

a(3) = a(2) - 5 = 8 - 5 = 3

a(4) = a(3) - 5 = 3 - 5 = - 2

The fourth term is - 2