Define the function of range and domain?

Answer 1

Let the function be f(x) = 1/(x-1)

The domain is all allowable values for which the function can be defined.

Here, except 1, any number would give the function a meaningful value. If x=1, the denominator becomes 0 and the function becomes undefined. Therefore, the domain is all real numbers except 1.

The range is all values assumed by the function.

Here, the range is negative infinity to plus infinity (that is , all real numbers).