60 points and brainliest!
which segments show changes of state that absorb heat?
b-c
c-d
d-c
d-e
e-f

B-C and D-E  

Explanation:

In segment B-C the substance is changing from a solid to a liquid (melting). There is no change in temperature because the heat is being used to separate the particles from the solid and move them into the liquid phase.

In segment D-E the substance is changing from a liquid to a gas (boiling). There is no change in temperature because the heat is being used to separate the particles from the liquid and move them into the gas phase.

C-D is wrong. The liquid is being heated from its melting point to its boiling point.

D-C is wrong. The liquid is being cooled from its boiling point to its melting point.

E-F is wrong. It represents heating of the gas.

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 .