(a)
The years in which the sales showed the greatest increase and the least increase.
(a)

Answer to Problem 88E
There is the great increase in 2014-2015 and the least increase in 2013-2014.
Explanation of Solution
Given information:
The graph shows the sales in billions of dollars for apple in the year 2009 through 2015.
Formula used:
Calculation:
To determine the year in which the sales showed the greatest increase and the least increase. Find the slope of the line segment connecting the points for the years 2009 and 2015.
Use the formula of the slope of a line passing through these two points and make a table.
With the help of above table, the greatest increase is in 2014-2015 and the least increase in 2013-2014.
Conclusion:
There is the great increase in 2014-2015 and the least increase in 2013-2014.
(b)
The slope of the line segment connecting the point for the years 2009 and 2015.
(b)

Answer to Problem 88E
The slope of the line segment is 31.81 which is connecting the points for the years 2009 and 2015.
Explanation of Solution
Given information:
The graph shows the sales in billions of dollars for apple in the year 2009 through 2015.
Formula used:
Calculation:
Use the formula of the slope of a line passing through
Thus, the slope of the line segment is 31.81 which is connecting the points for the years 2009 and 2015.
Conclusion:
The slope of the line segment is 31.81 which is connecting the points for the years 2009 and 2015.
(c)
meaning of the slope in the context of the problem.
(c)

Answer to Problem 88E
The sales increase at the average rate of 31.81 billion dollar per year.
Explanation of Solution
Given information:
The graph shows the sales in billions of dollars for apple in the year 2009 through 2015.
Formula used:
Calculation:
The sales increase at the average rate of 31.81 billion dollar per year.
Conclusion:
The sales increase at the average rate of 31.81 billion dollar per year.
Chapter 1 Solutions
EBK PRECALCULUS W/LIMITS
- 1. A bicyclist is riding their bike along the Chicago Lakefront Trail. The velocity (in feet per second) of the bicyclist is recorded below. Use (a) Simpson's Rule, and (b) the Trapezoidal Rule to estimate the total distance the bicyclist traveled during the 8-second period. t 0 2 4 6 8 V 10 15 12 10 16 2. Find the midpoint rule approximation for (a) n = 4 +5 x²dx using n subintervals. 1° 2 (b) n = 8 36 32 28 36 32 28 24 24 20 20 16 16 12 8- 4 1 2 3 4 5 6 12 8 4 1 2 3 4 5 6arrow_forward= 5 37 A 4 8 0.5 06 9arrow_forwardConsider the following system of equations, Ax=b : x+2y+3z - w = 2 2x4z2w = 3 -x+6y+17z7w = 0 -9x-2y+13z7w = -14 a. Find the solution to the system. Write it as a parametric equation. You can use a computer to do the row reduction. b. What is a geometric description of the solution? Explain how you know. c. Write the solution in vector form? d. What is the solution to the homogeneous system, Ax=0?arrow_forward
- 2. Find a matrix A with the following qualities a. A is 3 x 3. b. The matrix A is not lower triangular and is not upper triangular. c. At least one value in each row is not a 1, 2,-1, -2, or 0 d. A is invertible.arrow_forwardFind the exact area inside r=2sin(2\theta ) and outside r=\sqrt(3)arrow_forwardA 20 foot ladder rests on level ground; its head (top) is against a vertical wall. The bottom of the ladder begins by being 12 feet from the wall but begins moving away at the rate of 0.1 feet per second. At what rate is the top of the ladder slipping down the wall? You may use a calculator.arrow_forward
- Explain the key points and reasons for the establishment of 12.3.2(integral Test)arrow_forwardUse 12.4.2 to determine whether the infinite series on the right side of equation 12.6.5, 12.6.6 and 12.6.7 converges for every real number x.arrow_forwarduse Cauchy Mean-Value Theorem to derive Corollary 12.6.2, and then derive 12.6.3arrow_forward
- Calculus: Early TranscendentalsCalculusISBN:9781285741550Author:James StewartPublisher:Cengage LearningThomas' Calculus (14th Edition)CalculusISBN:9780134438986Author:Joel R. Hass, Christopher E. Heil, Maurice D. WeirPublisher:PEARSONCalculus: Early Transcendentals (3rd Edition)CalculusISBN:9780134763644Author:William L. Briggs, Lyle Cochran, Bernard Gillett, Eric SchulzPublisher:PEARSON
- Calculus: Early TranscendentalsCalculusISBN:9781319050740Author:Jon Rogawski, Colin Adams, Robert FranzosaPublisher:W. H. FreemanCalculus: Early Transcendental FunctionsCalculusISBN:9781337552516Author:Ron Larson, Bruce H. EdwardsPublisher:Cengage Learning





