Question

Write a recursive formula for the sequence 15, 26, 48, 92, 180, …. Then find the next term.

Answer 1

\(\Large \color{midnightblue}{\rightarrow (2*180) - 4 }\)

We are essentially doubling the number and subtracting that by 4.

Answer 2

Wait, let me find the formula.

Answer 3

\(\Large \color{midnightblue}{\rightarrow n_{t} = 2(t - 1) - 4 }\)

Answer 4

I mean 2(n - 1), I guess.

Answer 5

Ask satellite.

Answer 6

\[a_n=2 a_{n-1}-4\] i think is what you mean to write

Answer 7

no you have it correct

Answer 8

Partially correct.

Answer 9

I didn't attach 2n

Answer 10

just need to write the previous term as
\[a_{n-1}\] not
\[2(n-1)\]

Answer 11

thank you everyone 4 helping me

Answer 12

So, the correct formula is:

\(\Large \color{midnightblue}{\rightarrow n_{t} = 2n_{t - 1} - 4 }\)