In mammals, the weight of the heart is ap- proximately 0.5% of the total body weight.
Write a linear model that gives the heart
weight in terms of the total body weight.
Use the model to find
a) the weight of the heart of a human whose
weight is 162 lbs.
Answer in units of lbs.

we have been given a quadratic function and we need to restrict the domain such that it becomes a one to one function.

we know that vertex of this quadratic function occurs at (5,2).

further, we know that range of this function is .

if we restrict the domain of this function to either or , it will become one to one function.

let us know find its inverse.

upon interchanging x and y, we get:

let us now solve this function for y.

hence, the inverse function would be if we restrict the domain of original function to and the inverse function would be if we restrict the domain to .