a) Please see the image attached below to know the graph of the quartic equation.
b) The population of West Viriginia was decreasing between 1995 and 2004.
c) The highest population was obtained in early 1994 and was more than 1,815,000.
How to analyze and interpret graphically a quartic equation that models a population
Herein we know that the population in a certain period of time is represented by a quartic equation, valid from 1.990 to 2.004.
a) In the first part of this question, we need to plot the graph of the equation. Please notice that the domain of the function is represented by the horizontal axis and the range by the vertical axis. The image of the function is attached below.
b) The population is increasing if Δy > 0 for Δt > 0 and decreasing if Δy < 0 for Δt > 0. By direct inspection in the picture we see that the population of West Viriginia was increasing between 1990 and 1994 and decreasing between 1995 and 2004.
c) By direct inspection in the picture we find that the highest population was obtained in early 1994 and was more than 1,815,000.
To learn more on quartic equations: https://brainly.com/question/25285042
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