This equation is in standard from unless you mean vertex standard form?
Answer:

Step-by-step explanation:

Given:
The table represents a proportional relationship.
To find:
The equation of the function.
Solution:
If y is directly proportional to x, then

...(i)
where, k is the constant of proportionality.
From the given table it is clear that the function passes through (2,1). So, the equation must be satisfied by the point (2,1).
Putting x=2 and y=1 in (i), we get


Putting
, we get

Therefore, the correct option is A.
Answer:
r = [1 + (i/n)]n - 1. Where: r =
Step-by-step explanation: