Determine If the Function Is Concave Up or Concave Down $y = x ^ { 4 / 9 }$

question 188

Multiple Choice

Determine if the function is concave up or concave down in the first quadrant.
- $y = x ^ { 4 / 9 }$

• A) Concave up
• B) Concave down

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Definitions:

Semicircular Canal

One of three looped structures in the inner ear that are responsible for maintaining balance by detecting head rotation.

Nerve Endings

The terminations of nerve fibers that are responsible for sensing stimuli from the environment or within the body.

Hair Cells

Sensory cells located in the inner ear, responsible for converting sound vibrations into electrical signals for hearing.

External Acoustic Meatus

The external opening of the ear canal, which runs from the outer ear to the eardrum.