PLS I NEED ASAP! 10 PTS! The power goes out on a very tall building. You cannot remember what floor you are on
so you drop a quarter down the elevator shaft. The quarter takes 8.4 seconds to hit the
bottom (assume the time for the sound to return is negligible and that the quarter
strikes the ground floor). A standard floor is 3.4 m. What floor are you on?

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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 .