Question

Find the first term and common difference for the following A.P.:
-15, -11, -7, -3,​

Answer 1

Answer:

First term, a = -15

Common difference, d = (-11) - (-15) = 4

Answer 2

Answer: Here you go,

Step-by-step explanation:

The provided series is,

-15, -11, -7, -3

As we can see, the first term is (-15)

And the common difference can be got by Substracting the second term by firest term, hence

=(-15)-(-11)

=(-15)+11

=(-4)

Hope this helps!!!!!