Question

1. A teacher asked the students to create a formula for the sequence 5, 8, 11, 14, ...

a. Anthony came up with the formula:
an = 5 + 3(n-1)
•
Is his formula correct and how do you know?
•
Is it an explicit or recursive formula?

Answer 1

Good evening ,

Answer:

Is his formula correct and how do you know : Yes

Is it an explicit or recursive formula : explicit

Explanation:

an = a1 + (n-1)r

a1 = 5

r = 8-5 = 3

Then an = 5 + 3(n-1).

:)