How much heat is needed to vaporize 100 g of water at 100 degrees C? a. 54,000 cal
b. 100 cal
c. 80 cal
d. 800 cal

it has to be b, about 97 percent.

im guessing the west of station b

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 .