F(x) = 5(4)^x is the correct answer.
Given:


To find:
The third term of the sequence.
Solution:
We have,

For n=2, we get


![[\because b(1)=-12]](https://tex.z-dn.net/?f=%5B%5Cbecause%20b%281%29%3D-12%5D)
For n=3, we get


![[\because b(2)=-48]](https://tex.z-dn.net/?f=%5B%5Cbecause%20b%282%29%3D-48%5D)
Therefore, the 3rd term of the sequence is -192.
Step-by-step explanation:
4t-2k+5k-t
=3t -3k
= 3( t-k)
I would say C because it is the only one that makes the most sense, if you reflect something from the y-axis, the negatives become positives, and the positives become negitives