Your washer has a power of 350 watts and your dryer has a power of 1800 watts. How much energy do you use to clean a load of clothes in 1 hour of washing and 1 hour of drying?

an enlarged virtual image

double the distance = divide strength by 4

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 .