It'll be useful to compare the size of an atom with something familiar; how about the thickness of a sheet of paper? The diameter of a hydrogen atom is about 1 × 10-10 m and the thickness of a piece of paper is about 0.05 mm. How many hydrogen atoms stacked up would it take to equal the thickness of the paper? Give your calculations and answer in the text box below; your answer should be a whole number.

a displacement distance is size of displ

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 .