Answer:

Step-by-step explanation:
we know that
A relationship between two variables, x, and y, represent an inverse variation if it can be expressed in the form
or 
In this problem we have
For
-----> 
so
Find the value of k

substitute the value of x and f(x)


therefore
the equation is equal to

For
-------> substitute in the equation and find the value of f(x)

Answer:
I am not getting your question .
Answer: I think 4.4 and not sure
Step-by-step explanation:
Answer:
if the equation is f(x)=ax^2+bx+c
Step-by-step explanation:
I think you’d do (5,8) - (1,3) to get (4,5)