The total number of people, in thousands, who were below the poverty level can be modeled by 2 N(t) - -308(t – 12) + 46,594, where N(t) represents the total number of people in the United States who were below the poverty level, in thousands, t years since 2000.1 (a) How many people were below the poverty level in 2010? (Include units in your answer. More information.) In 2010, there were about below the poverty level in the United States. (b) Find N(10) and explain its meaning. (Include units in your answers as appropriate. More information.) In the year there were about below the poverty level in the United State (c) Sketch a graph of this model. 54 000- 54000- 54 000- Roonlo

Intermediate Algebra
19th Edition
ISBN:9780998625720
Author:Lynn Marecek
Publisher:Lynn Marecek
Chapter10: Exponential And Logarithmic Functions
Section10.2: Evaluate And Graph Exponential Functions
Problem 119E: In the following exercises, use an exponential model to solve. 119. A researcher at the Center for...
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1st graph.) A coordinate plane has "People (in thousands)" on the horizontal axis and "Years since 2000" on the vertical axis. The origin is at (0, 20000). The curve enters the window at approximately 1.8 on the positive horizontal axis, goes up and right becoming less steep, changes direction at the approximate point (10, 46600), goes down and right becoming more steep, and exits the window at approximately 18.2 on the positive horizontal axis.

2nd graph.) A coordinate plane has "Years since 2000" on the horizontal axis and "People (in thousands)" on the vertical axis. The origin is at (0, 20000). The curve enters the window at approximately 2.7 on the positive horizontal axis, goes up and right becoming less steep, changes direction at the approximate point (12, 46600), goes down and right becoming more steep, and exits the window at approximately 21.3 on the positive horizontal axis.

3rd graph.) A coordinate plane has "Years since 2000" on the horizontal axis and "People (in thousands)" on the vertical axis. The origin is at (0, 20000). The curve enters the window in the first quadrant, goes down and right becoming less steep, changes direction at the approximate point (22, 30600), goes up and right becoming more steep, and exits the window in the first quadrant.

4 th graph .) A coordinate plane has "People (in thousands)" on the horizontal axis and "Years since 2000" on the vertical axis. The origin is at (0, 20000). The curve enters the window in the first quadrant, goes down and right becoming less steep, changes direction at the point (20, 30000), goes up and right becoming more steep, and exits the window in the first quadrant.

 

The total number of people, in thousands, who were below the poverty level can be modeled by
2
N(E) = -308(t – 12) + 46,594,
where N(t) represents the total number of people in the United States who were below the poverty level, in thousands, t years since 2000.t
(a) How many people were below the poverty level in 2010? (Include units in your answer. More information.)
In 2010, there were about
below the poverty level in the United States.
(b) Find N(10) and explain its meaning. (Include units in your answers as appropriate. More information.)
In the year
there were about
below the poverty level in the United States.
(c) Sketch a graph of this model.
54 000-
54 000-
54 000
52 000 in thousands)
50 000
54 000
People
Years
since 2000
Years
People
52 000since 2000
52 000in thousands)
52 000
50 000
50 000
50 000
48 000
48 000
48 000
48 000
46 000
46 000
46 000
46 000
44 000
44 000
44 000
44 000
42 000
42000
42 000
42 000
40 000
40 000
40000
40 000
38 000
38 000
38 000
38 000
36 000
34 000
36 000
36 000
36 000
34 000
34 000
34 000
32 000
32 000
32 000
32 000
30 000
30 000
30000
30 000
28 000
28 000
28 000
28 000
26 000
26 000
26 000
26 000
24 000
24 000
24 000
24 000
22 000
22 000
22 000
22 000
Реople
in thousands)
15
Years
since 2000
Years
since 2000,
20
People
in thousands
10
20
25
30
10
15
20
25
30
10
15
25
30
10
15
20
25
30
Transcribed Image Text:The total number of people, in thousands, who were below the poverty level can be modeled by 2 N(E) = -308(t – 12) + 46,594, where N(t) represents the total number of people in the United States who were below the poverty level, in thousands, t years since 2000.t (a) How many people were below the poverty level in 2010? (Include units in your answer. More information.) In 2010, there were about below the poverty level in the United States. (b) Find N(10) and explain its meaning. (Include units in your answers as appropriate. More information.) In the year there were about below the poverty level in the United States. (c) Sketch a graph of this model. 54 000- 54 000- 54 000 52 000 in thousands) 50 000 54 000 People Years since 2000 Years People 52 000since 2000 52 000in thousands) 52 000 50 000 50 000 50 000 48 000 48 000 48 000 48 000 46 000 46 000 46 000 46 000 44 000 44 000 44 000 44 000 42 000 42000 42 000 42 000 40 000 40 000 40000 40 000 38 000 38 000 38 000 38 000 36 000 34 000 36 000 36 000 36 000 34 000 34 000 34 000 32 000 32 000 32 000 32 000 30 000 30 000 30000 30 000 28 000 28 000 28 000 28 000 26 000 26 000 26 000 26 000 24 000 24 000 24 000 24 000 22 000 22 000 22 000 22 000 Реople in thousands) 15 Years since 2000 Years since 2000, 20 People in thousands 10 20 25 30 10 15 20 25 30 10 15 25 30 10 15 20 25 30
48 000
48 000
48 000
46 000
44 000
46 000
46 000
44 000
46 000
44 000
44 000
42 000
42 000
42 000
42 000
40 000
40 000
40000
40000
38000
38 000
38 000
38 000
36000
36 000
36 000
36 000
34000
34 000
34 000
34 000
32 000
32 000
32 000
32 000
30 000
30 000
30 000
30 000
28 000
28 000
28 000
26 000
26 000
26 000
26 000
24 000
24 000
24 000
24 000
22 000
22000
22 000
22000
People
in thousands,
30
Years
since 2000
Years
since 2000,
People
fin. thousands
10 15 20
25
5.
10
15
20
25
30
10
15
25
30
5.
10
15
20
25
30
(d) Estimate the vertex of this model and explain its meaning. (Include units in your answers as appropriate. More information. Round your second answer to the nearest thousand people.)
According to this model, in the year
there were about
below the poverty level in the United States which is a
-Select--
(e) Use your graph to estimate when the number of people in the United States below the poverty level was 43 million. (Round your answers to the nearest year.)
According to the graph, in about the year
(smaller value) and again in the year
(larger value) the number of people in the United States below the poverty level was 43
(f) If the domain for this model is [3, 18], find the range.
O [0, c0]
O [0, 46594]
O [31500, 46500]
O [21646, 46594]
O [3, 18]
20
Transcribed Image Text:48 000 48 000 48 000 46 000 44 000 46 000 46 000 44 000 46 000 44 000 44 000 42 000 42 000 42 000 42 000 40 000 40 000 40000 40000 38000 38 000 38 000 38 000 36000 36 000 36 000 36 000 34000 34 000 34 000 34 000 32 000 32 000 32 000 32 000 30 000 30 000 30 000 30 000 28 000 28 000 28 000 26 000 26 000 26 000 26 000 24 000 24 000 24 000 24 000 22 000 22000 22 000 22000 People in thousands, 30 Years since 2000 Years since 2000, People fin. thousands 10 15 20 25 5. 10 15 20 25 30 10 15 25 30 5. 10 15 20 25 30 (d) Estimate the vertex of this model and explain its meaning. (Include units in your answers as appropriate. More information. Round your second answer to the nearest thousand people.) According to this model, in the year there were about below the poverty level in the United States which is a -Select-- (e) Use your graph to estimate when the number of people in the United States below the poverty level was 43 million. (Round your answers to the nearest year.) According to the graph, in about the year (smaller value) and again in the year (larger value) the number of people in the United States below the poverty level was 43 (f) If the domain for this model is [3, 18], find the range. O [0, c0] O [0, 46594] O [31500, 46500] O [21646, 46594] O [3, 18] 20
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