Question

03. What are the first four terms of the sequence represented by the expression n(n – 1) – 4? (1 point)
–2, 2, 6, 10
–3, 0, 3, 6
–4, –2, 2, 8
–5, –4, –2, 6

Answer 1

@kelliegirl33

Answer 2

did they give you a of 1?

Answer 3

no.. that was all the information

Answer 4

@awkwardpanda do you know this???

Answer 5

your difference is -4 so which sequence decreases by 4 every time?

Answer 6

None of them decrease.

Answer 7

or wait....are you sure its not d(n-1)-4?

Answer 8

please double check for that because that will make a huge difference

Answer 9

Yes. Im 100% sure.

Answer 10

hmm...alright. ill keep trying to figure it out. sorry for the wait

Answer 11

its cool

Answer 12

you can solve for a of 1. making n=1 so you have 1(1-1)-4 = -4 as your first term

Answer 13

then if you do a of 2. making n=2 you get 2(2-1)-4 so then 2-4= -2

Answer 14

then a of 3, n = 3. 3(3-1)-4. 6-4 = 2

Answer 15

a of 4, n=4 4(4-1) - 4 = 12-4 = 8

Answer 16

that should be your answer. wow....haha it shouldnt have taken me this long to think that out XD

Answer 17

Thanks!

Answer 18

sure thing :)