Solve the Problem
- We Used This Data to Develop the Quadratic Function

question 193

Multiple Choice

Solve the problem
- $$\begin{array} { c | c } & \text { Population } \\\text { Year } & \text { (in millions of people) } \\\hline 0 & 65 \\1 & 65.5 \\2 & 67 \\3 & 69 \\4 & 71.5\end{array}$$ We used this data to develop the quadratic function $$f ( x ) = 0.373 x ^ { 2 } + 0.165 x + 65$$ , which models the population of the city y in millions in the year x. Use the model to find the estimated population in
Year 9.

• A) 1,490,000,000,000
• B) 1,490,000
• C) 65,538,000
• D) 66,822,000

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Definitions:

Glial Cells

Glial cells, also known as glia, are non-neuronal cells in the central nervous system that support, protect, and nourish neurons, playing crucial roles in brain function.

Neural Connections

The links between neurons that are the basis for transmitting signals throughout the nervous system.

Action Potential

A temporary reversal of electrical polarization of the membrane of a nerve cell or muscle cell, enabling the transmission of signals.

Ions

Electrically charged atoms or molecules formed by the loss or gain of one or more electrons.