Write the Phrase as a Variable Expression $\frac { 4 } { x }$

question 89

Multiple Choice

Write the phrase as a variable expression. Use x to represent "a number."
-The product of 4 and a number

• A) 4x
• B) 4+x
• C) 4-x
• D) \(\frac { 4 } { x }\)

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Definitions:

Firing

In the context of neurons, it refers to the transmission of an electrical signal along the neuron.

Resting Potential

The difference in voltage across the neuronal membrane when the neuron is not actively sending a signal, typically around -70mV.

Membrane Potential

The electrical potential difference across a cell's plasma membrane, crucial for the transmission of nerve impulses and muscle contraction.

Millivolts

A unit of electric potential equal to one thousandth of a volt, commonly used in various fields such as physics and electrophysiology to measure small voltage differences.