Question

A1 = 1; d = 3a1 = 1; d = −3a1 = 17; d = 3a1 = 17; d = −3

Answer 1

Given:

A graph is given and the points on the graph are as:

(1, 17), (2, 14), (3, 11), (4, 8), (5, 5), (6, 2)

Required:

To determine the value of

`a_1`

and d for the given sequence.

Step-by-step explanation:

We can observe from the graph that the given sequence is an arithmetic sequence.

Here

`a_1`

represent the first value and d represent the common ratio.

So the values are as:

`\begin{gathered} a_1=1 \\ d=14-17=\text{ -3} \end{gathered}`

Final Answer:

`a_(1=1),\text{ d = -3}`

The second option is the correct answer.