Suppose that stars evolved without losing mass—that once matter was incorporated into a star, it remained there forever. how would the appearance of the galaxy be different from what it is now? would there be population i and population ii stars? what other differences would there be?

the answer is 3.1 his answer is wrong mines is right

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 .