Question

**Please help**




A video game has been developed whereby the player must earn a certain number of experience points before progressing to the next level.

On level 1, a player must earn 1 experience point.
On level 2, a player must earn 4 experience points.
On level 3, a player must earn 8 experience points.
On level 4, a player must earn 13 experience points.

Which recursive equation represents the pattern?

an = an – 1 + n

an = an – 1 + (n + 1)

an = an – 1 + 2n

an = an – 1 + (2n + 1)

Answer 1

looks like each level you have to earn 2 + the number the last level was in order to advance

Answer 2

Yes,

Answer 3

Do you know the answer?

Answer 4

yes

Answer 5

n is the number of the level

Answer 6

'an' is the number of experience points you need to pass the nth level

Answer 7

Okay

Answer 8

To be honest, I tried understanding this a month ago and I don't need to understand it anymore. Can you just tell me the answer?

Answer 9

look at my first comment now

Answer 10

if you don't need to understand it, why are doing this problem?

Answer 11

Re-submitting a practice test I did months ago.

Answer 12

I already finished this lesson and what not. I just need the answer

Answer 13

then look at my first comment, it basically tells you the answer

Answer 14

an = an – 1 + 2n?

Answer 15

That was wrong...

Answer 16

if you're on level 2, you need 4 experience points

so plug in your values and see if that's true

4 = 4-1 + 2*2

4 = 3+4

4 doesn't equal 7, so no, that's not the correct answer