Additional Concepts
Determine the Direction in Which the Parabola Opens $$x = - ( y - 8 ) ^ { 2 } + 1$$

question 83

Multiple Choice

Additional Concepts
Determine the direction in which the parabola opens, and the vertex.
- $$x = - ( y - 8 ) ^ { 2 } + 1$$

• A) Opens to left; \(( 1,8 )\)
• B) Opens to left; \(( 1 , - 8 )\)
• C) Opens to left; \(( 8,1 )\)
• D) Opens to right; \(( 8,1 )\)

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Definitions:

Nodes of Ranvier

Gaps in the myelin sheath along a nerve fiber, where the axonal membrane is exposed to the extracellular space, facilitating rapid signal transmission.

Myelinated Axons

Axons that are covered with myelin, a fatty substance that speeds up the transmission of nerve impulses.

Posterior Root Ganglion

A cluster of nerve cell bodies (neurons) located in the dorsal root of the spinal nerve, involved in transmitting sensory information to the central nervous system.

Sensory Neuron

A type of neuron that transmits signals from sensory receptors to the central nervous system.