
Concept explainers
Use a calculator with an
Average annual premiums for employer-sponsored family health insurance policies more than doubled over 11 years The bar graph shows the average cost of a family health insurance plan in the United States for six selected years from 2000 through 2011.
The data can be modeled by
in which f(x) and g(x) represent the average cost of a family health insurance plan x years after 2000. Use these functions to solve Exercises 71–72. Where necessary, round answers to the nearest whole dollar.
a. According to the linear model, what was the average cost of a family health insurance plan in 2011?
b. According to the exponential model, what was the average cost of a family health insurance plan in 2011?
c. Which function is a better model for the data in 2011?

Want to see the full answer?
Check out a sample textbook solution
Chapter 4 Solutions
EBK ALGEBRA AND TRIGONOMETRY
- . Find how many years it takes for $1786 to grow to $2063 if invested at 2.6% annual interest compounded monthly. 12+arrow_forward(1) Let M and N be non-empty subsets of a linear space X, show that whether = U or not, and show that there whether exsits a liear function from P₂(x) into R' which onto but not one-to-one or not. ام (2) Let R be a field of real numbers and P,(x)=(a+bx+cx? / a,b,ce R} be a vector space over R, show that whether there exsit two hyperspaces A and B such that AUB is a hyperspace or not. (3) Let A be an affine set in a linear space X over afield F and tEA, show that A-t is a subspace of Xand show that if M and N are balanced sets then M+N is balanced set. (4) Write the definition of bounded set in a normed space, and write with prove an equivalent statement to definition. (5) Let d be a metric on a linear space X over a field F, write conditions on d in order to get that there is a norm on X induced dy d and prove that. (6) Let M be a non-empty subset of a normed space X, show that xEcl(M) iff for any r>o there exsits yEM such that llx-yllarrow_forwardFind all solutions to the following equation. Do you get any extraneous solutions? Explain why or why not. 2 2 + x+1x-1 x21 Show all steps in your process. Be sure to state your claim, provide your evidence, and provide your reasoning before submitting.arrow_forward
- Directions: For problems 1 through 3, read each question carefully and be sure to show all work. 1. What is the phase shift for y = 2sin(2x-)? 2. What is the amplitude of y = 7cos(2x+л)? 3. What is the period of y = sin(3x-π)? Directions: For problems 4 and 5, you were to compare and contrast the two functions in each problem situation. Be sure to include a discussion of similarities and differences for the periods, amplitudes, y-minimums, y-maximums, and any phase shift between the two graphs. Write in complete sentences. 4. y 3sin(2x) and y = 3cos(2x) 5. y 4sin(2x) and y = cos(3x- -플)arrow_forward2. Find the exact value of 12 + 12+12+√√12+ √12+ 12arrow_forwardTechnetium-99m is used as a radioactive tracer for certain medical tests. It has a half-life of 1 day. Consider the function TT where T(d)T(d) =100(2)−d=100(2)−d is the percent of Technetium-99m remaining dd days after the test. Which expression represents the number of days until only 5% remains?arrow_forward
- Please Help me answer this linear algebra question. This is a practice textbook question.arrow_forward1. a scientist observed a bacterium in a microscope. it measured about .0000029 meter in diameter which of the following is closest to it? A- 2 x 10^-6, B- 2 x 10^-5, C- 3 x 10^-5, or D- 3 x 10^-6 2.express the product of 500 and 400 in scientific notation. is it 2 x 10^5 or 2 x 10^4 or 2 x 10^3 or 20 x 10^4arrow_forwardPlease Help me answer this linear algebra question. This is a practice textbook question.arrow_forward
- Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:CengageGlencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw HillCollege Algebra (MindTap Course List)AlgebraISBN:9781305652231Author:R. David Gustafson, Jeff HughesPublisher:Cengage Learning
- Trigonometry (MindTap Course List)TrigonometryISBN:9781337278461Author:Ron LarsonPublisher:Cengage Learning


