Solve the Problem $h ( x ) = x ^ { 2 } + 2 x - 8$

question 69

Multiple Choice

Solve the problem.
-If $h ( x ) = x ^ { 2 } + 2 x - 8$ , solve $h ( x ) > 0$ .

• A) \(( - \infty , - 4 )\)
• B) \(( - 4,2 )\)
• C) \(( - \infty , - 4 )\) or \(( 2 , \infty )\)
• D) \(( 2 , \infty )\)

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Definitions:

Place Theory

Theory on how the inner ear registers the frequency of sound, stating that each frequency produces vibrations at a particular spot on the basilar membrane.

Cone Receptors

Photoreceptor cells in the retina of the eye that function best in relatively bright light and enable the perception of colors.

Auditory Nerve

The nerve structure that receives information about sound from the hair cells of the inner ear and carries these neural impulses to the brain’s auditory areas.

Cochlea

A spiral-shaped, fluid-filled inner ear structure crucial for converting sound waves into nerve signals.