An industrial thermometer is heated until the mercury inside it is exerting 400 N of force against the inner surface. That surface has a total area of 200 cm2. How much pressure is the mercury exerting against the inner surface of the thermometer? Note that 1 Pa = 1 N/m2.

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 .