Question

Find the first 4 terms and the 10th term for 5-2n

Answer 1

3, 1, -1, -3

-15

Explanation:

The nth term is 5 - 2n.

Put n as 1, 2, 3, 4, and 10.

5 - 2(1)

5 - 2 = 3

5 - 2(2)

5 - 4 = 1

5 - 2(3)

5 - 6 = -1

5 - 2(4)

5 - 8 = -3

5 - 2(10)

5 - 20 = -15

The first four terms are 3, 1, -1, -3.

The 10th term is -15.

Answer 2

The first four terms using the formula

5 - 2n is

First term

5 - 2(1) = 5 - 2 = 3

Second term

5 - 2(2) = 5 - 4 = 1

Third term

5 - 2(3) = 5 - 6 = - 1

Fourth term

5 - 2(4) = 5 - 8 = - 3

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

The 10th term is

5 - 2(10) = 5 - 20 = - 15

Hope this helps you