Find the First Term and the Common Difference for the Arithmetic

question 16

Multiple Choice

Find the first term and the common difference for the arithmetic sequence. Round approximations to the nearest
hundredth.
- $$S _ { 5 } = - 15 , a _ { 5 } = - 7$$

• A) \(\mathrm { a } _ { 1 } = 1 , \mathrm {~d} = - 2\)
• B) \(\mathrm { a } _ { 1 } = 29 , \mathrm {~d} = - 2\)
• C) \(\mathrm { a } _ { 1 } = 1 , \mathrm {~d} = - 2.8\)
• D) \(\mathrm { a } _ { 1 } = 29 , \mathrm {~d} = - 2.8\)

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Definitions:

Axon

The long, slender projection of a neuron that conducts electrical impulses away from the neuron's cell body to other neurons or muscles.

Action Potential

A sudden, temporary reversal of the electrical charge across a neuron's plasma membrane, allowing neurons to transmit signals over long distances within the body.

Axon Hillock

The axon hillock is the part of a neuron that connects the cell body to the axon, playing a crucial role in the initiation of nerve impulses.

Magnitude

Magnitude typically refers to the size, extent, or dimension of an object or phenomenon, often quantified in terms of numerical values in various scientific fields.