What is d of the arithmetic sequence for which a5 equals 24 and a9 equals 40

In an arithmetic sequence d represent the common difference.

The formula to find the general term of an arithmetic sequence is,

Where = nth term and

= First term.

Given, . Therefore,

Next step is to subtract the above equations so that we can eliminate a1 and get the value of d. Hence,

4d - 8d = 24 - 40

-4d = - 16

Divide each sides by - 16.

d = 4

So, d = 4.

Hope this helps yoi!.

the correct answers i think are b. and d.

give me brainliest if it is correct!

this cant be answered without the graph. you may need to add it.