?In Exercises 57–63, solve each of the following problems algebraically. Be sure to
Chapter 4, Problem 63(choose chapter or problem)
In Exercises 57–63, solve each of the following problems algebraically. Be sure to label what the variables represent. Round to the nearest hundredth where necessary.
Using local census data, the following graph shows how the population per square mile changed in a certain area from the year 1900 to the year 1990. The horizontal axis represents the year, and the vertical axis represents the population in number of people per square mile.
(a) What was the population per square mile in 1950?
(b) Is it accurate to say that the population per square mile increased during every 10-year period illustrated in the graph? Explain.
(c) During which 10-year period did the population per square mile increase the most? What was the increase during this 10-year period?
(d) During which 10-year period did the population per square mile remain constant?
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