**Domain And Zeros Of A Function**. There are no denominators so no division-by-zero problems and no radicals so no square-root-of-a-negative problems. By using this website you agree to our Cookie Policy.

For example the domain of the parent function fx 1 x is the set of all real numbers except x 0. Find x so that f x x 2 8 x 9 0. The range of a function is the complete set of all possible resulting values of the dependent variable y usually after we have substituted the domain.

### Therefore the domain of the function is -1 1.

Find the domain of the function fx2x 2 12x 5. Find x so that f x x 2 8 x 9 0. Find the domain of the function fx2x 2 12x 5. 3 First-Order Functions The first-order transfer functions can be written as of the general form 0 1 0ω s a s a T s where ω0 is pole frequency - the location of the real pole.