Question

The nth term of the sequence is n-4.

a) Work out the first three terms of the sequence.
b)Work out the tenth term of the sequence.

Answer 1

see explanation

Explanation:

To find the first 3 terms, substitute n = 1, 2, 3 into the n th term formula, that is

n = 1 : 1 - 4 = - 3

n = 2 : 2 - 4 = - 2

n = 3 : 3 - 4 = - 1

The first 3 terms are - 3, - 2, - 1

Similarly find the tenth term by substituting n = 10 into the formula

10 - 4 = 6

The tenth term is 6