The graph represent the number of new AIDS cases diagnosed among adolescents (20-24 yr) in the United States for selected years. (Source: Centers for Disease Control, www.cdc.gov) Approximate the interval(s) over which the number of new AIDS cases among adolescents 20-24 yr increased. Approximate the interval(s) over which the number of new AIDS cases among adolescents decreased. How many turning points does the graph show? Based on the number of turning points, what is the minimum degree of a polynomial function that could be used to model the data? Would the leading coefficient be positive or negative? Approximate the year in which the number of new AIDS cases among adolescents 20-24 yr was the greatest. Approximate the value of the maximum number of new cases diagnosed in a single year.
The graph represent the number of new AIDS cases diagnosed among adolescents (20-24 yr) in the United States for selected years. (Source: Centers for Disease Control, www.cdc.gov) Approximate the interval(s) over which the number of new AIDS cases among adolescents 20-24 yr increased. Approximate the interval(s) over which the number of new AIDS cases among adolescents decreased. How many turning points does the graph show? Based on the number of turning points, what is the minimum degree of a polynomial function that could be used to model the data? Would the leading coefficient be positive or negative? Approximate the year in which the number of new AIDS cases among adolescents 20-24 yr was the greatest. Approximate the value of the maximum number of new cases diagnosed in a single year.
Solution Summary: The author explains how the graph represents the number of new AIDS cases among adolescents in the United States for selected years.
The graph represent the number of new AIDS cases diagnosed among adolescents (20-24 yr) in the United States for selected years.
(Source: Centers for Disease Control, www.cdc.gov)
Approximate the interval(s) over which the number of new AIDS cases among adolescents 20-24 yr increased.
Approximate the interval(s) over which the number of new AIDS cases among adolescents decreased.
How many turning points does the graph show?
Based on the number of turning points, what is the minimum degree of a polynomial function that could be used to model the data? Would the leading coefficient be positive or negative?
Approximate the year in which the number of new AIDS cases among adolescents 20-24 yr was the greatest.
Approximate the value of the maximum number of new cases diagnosed in a single year.
Salary after College. In 2010, MonsterCollege surveyed 1250 U.S.
college students expecting to graduate in the next several years.
Respondents were asked the following question:
What do you think your starting salary will be at your first
job after college?
The_line graph shows the percentage_of college_students
who anticipated various starting salaries. Use the graph to solve
Exercises 9–14.
Anticipated Starting Salary
at First Job after College
24%
20%
16%
12%
8%
A
4%
$20 $25 $30 $35 $40 $45 $50 $55 $60 $65 $70
Anticipated Starting Salary
(thousands of dollars)
Source: MonsterCollege™
9. What are the coordinates of point A? What does this mean
in terms of the information given by the graph?
10. What starting salary was anticipated by the greatest
percentage of college students? Estimate the percentage of
students who anticipated this salary.
11. What starting salary was anticipated by the least percentage
of college students? Estimate the percentage of students
who anticipated this…
What does the graph reveal about the relationship between age groups and the use of smartphones for navigation?
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