How does friction relate to charging?​

Friction and charge relate to each other because without friction or contact between two objects, the objects cannot become charged. When two objects rubb against each other the electrons move from one object to the other. After two objects have created friction or have come in contact with each other, one object will have more protons and the other object will have more electrons. If an object has more protons then electrons than that means that the object is positively charged, if an object has more electrons then protons than that means that the object is negatively charged.

Electrons = negative charge (-)

Protons = positive charge (+)

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 .