Answer:
<em>options: A,C,E </em>are correct.
Step-by-step explanation:
We have to find the expression equivalent to the expression:

we know that: 
Hence,
-----(1)
A)
(same as(1))
Hence, option A is correct.
B) 7 ; which is a different expression from (1)
Option B is incorrect.
C)
(Same as (1))
Option C is correct.
D)
which is a different expression from (1)
Hence, option D is incorrect.
E)
; which is same as (1)
Hence, Option E is correct.
F)
; which is not same as expression (1)
Hence, option F is incorrect.
We are given

we are given

At n=1:
we can plug n=1 into formula




At n=2:
we can plug n=2 into formula



................Answer
I think the answer is B.
If the equation you mean is f(x)= 3x^2 +5.
Hope this helps!
The answer is -1/5. If you use slope intercept formula of (-7,2) and (-2,1) you get -1/5