Find the Domain and Range of the Function $f ( x ) = - 4 + \sqrt { x }$

question 212

Multiple Choice

Find the domain and range of the function.
- $f ( x ) = - 4 + \sqrt { x }$

• A) D: \(( - \infty , \infty )\), R: \([ - 4 , \infty )\)
• B) D: \([ 0 , \infty )\), R: \([ - 4 , \infty )\)
• C) D: \([ 0 , \infty )\), R: \(( - \infty , \infty )\)
• D) D: \(( - \infty , 0 ] , R : ( - \infty , - 4 ]\)

---

Definitions:

Armature Windings

Coils of wire wound around the armature of an electric machine (such as a motor or generator) which are responsible for generating magnetic fields when current passes through them.

Field Windings

These are coils of wire within an electric motor or generator that create a magnetic field when electricity passes through them.

Current Flow

The movement of electric charge through a conductor, typically measured in amperes, integral to the operation of electronic devices and circuits.

Peak Torque

The maximum torque output of an engine or motor, representing the highest level of twisting force it can produce.