Simple machines make work easier. most simple machines reduce the amount of effort force needed to move an object. in this wheel and axle system, the wheel and axle is used to pull a bucket up. a person turns the handle (p), using effort force. what if the bucket is really heavy and the wheel cannot be turned? how can the effort force be reduced so the bucket can be lifted?

Make the radius of the handle larger in diameter. Larger wheel radius = more mechanical advantage.

attach the statements so i can answer : )

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 .