Question

PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!

A sequence is shown.
3, 9, 13, 33, 51, ...
Which of the following functions can be used to find the nth tern of this sequence?
a.f(n)=n^2+2

b.f(n)=2n^2+1

c.f(n)=2n+1

d.f(n)=3n^2

Answer 1

Answer:

b. f(n) = 2n^2 + 1

Step-by-step explanation:

Thanks for explaining the nth thing to me. It all makes sense now :'D

I'll be honest I think you're at least a grade level above me in math.

It's b. because

f(n) = 2(1)^2 + 1

        2(1) + 1

        2 + 1 = 3 (first term)

f(n) = 2(2)^2 + 1

        2(4) + 1

        8 + 1 = 9 (second term)  ...and so on. :)