Question

Find a formula for the nth term

of the arithmetic sequence.
First term 10
Common difference -3

Answer 1

Answer: -3n + 13

Explanation:

Answer 2

For an nth term in an arithmetic sequence

U(n) = a + (n - 1 )d

a = first term

d = common difference

U(n) = 10 + (n -1)-3

= 10 - 3n + 3

= 13 - 3n

Hope this helps.