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

step 1
Find the value of k
For P=8, M=2
substitute

The equation is equal to

step 2
Find the value of M²
when P=10
substitute the value of P in the equation


3/4=0,75
2,40$........0,75
x................1
x=2,40/0,75
x= 3,2 $ per pound
The answer is B because the yintercept is -2