Question

What is the value of the first term in the following arithmetic sequence?-9, -2, 5, 12, ...

Answer 1

Given:

The arithmetic sequence is,

`-9,-2,5,12,...`

To find:

The first term.

Step-by-step explanation:

We know that,

If the arithmetic sequence is given,

`a_1,a_2,a_3,.....`

Then the first term is,

`a=a_1`

The common difference is,

`d=a_2-a_1`

Comparing we get,

The first term is a = -9.

Final answer:

The first term is -9.