Question

What are the first five terms of the arithmetic sequence

Answer 1

Answer: d : 11, 8, 5, 2, -1

Answer 2

option d : 11, 8, 5, 2, -1

Explanation:

Given a=14-3n

To get first term we plug in 1 for n

n=1 ,
`a_1= 14- 3(1)= 14-3=11`

n=2 ,
`a_2= 14- 3(2)= 14-6=8`

n=3 ,
`a_3= 14- 3(3)= 14-9=5`

n=4 ,
`a_4= 14- 3(4)= 14-12=2`

n=5 ,
`a_5= 14- 3(5)= 14-15=-1`

So first five terms are 11, 8, 5, 2, -1