Final answer:
The type of voice disorder that is considered functional and warrants speech and voice intervention is Muscle Tension Dysphonia.
Step-by-step explanation:
The subject of this question is Health and the grade level is High School.
The type of voice disorder that is considered functional and warrants speech and voice intervention is Muscle Tension Dysphonia. Muscle Tension Dysphonia is a condition where there is excessive tension in the vocal muscles, leading to voice problems such as hoarseness or strain.
Examples of treatment for Muscle Tension Dysphonia may include voice therapy, relaxation techniques, and addressing any underlying psychological factors that may contribute to the condition.