Use a calculator or a computer for the following regression problems. Quadratic Versus Linear The average retail price for a used convertible Corvette depends on the age of the car, as shown in the accompanying table for the summer of 2012 (Edmund's, www.edmunds.com). Table for Exercise 113 Age (yr) Price ($) 1 42,235 2 38,261 3 32,686 4 29,414 5 26,750 6 25,125 7 22,444 8 18,112 9 16,517 a. Use both linear regression and quadratic regression on a graphing calculator to express the price as a function of the age of the car. b. Plot the data, the linear function, and the quadratic function on your calculator. Judging from what you see. which function appears to fit the data better? c. Predict the price of an 11–year-old car using both the linear function and the quadratic function.
Use a calculator or a computer for the following regression problems. Quadratic Versus Linear The average retail price for a used convertible Corvette depends on the age of the car, as shown in the accompanying table for the summer of 2012 (Edmund's, www.edmunds.com). Table for Exercise 113 Age (yr) Price ($) 1 42,235 2 38,261 3 32,686 4 29,414 5 26,750 6 25,125 7 22,444 8 18,112 9 16,517 a. Use both linear regression and quadratic regression on a graphing calculator to express the price as a function of the age of the car. b. Plot the data, the linear function, and the quadratic function on your calculator. Judging from what you see. which function appears to fit the data better? c. Predict the price of an 11–year-old car using both the linear function and the quadratic function.
Solution Summary: The author explains how to calculate the linear and quadratic equations to express the price as a function of age of the car.
Use a calculator or a computer for the following regression problems.
Quadratic Versus Linear The average retail price for a used convertible Corvette depends on the age of the car, as shown in the accompanying table for the summer of 2012 (Edmund's, www.edmunds.com).
Table for Exercise 113
Age (yr)
Price ($)
1
42,235
2
38,261
3
32,686
4
29,414
5
26,750
6
25,125
7
22,444
8
18,112
9
16,517
a. Use both linear regression and quadratic regression on a graphing calculator to express the price as a function of the age of the car.
b. Plot the data, the linear function, and the quadratic function on your calculator. Judging from what you see. which function appears to fit the data better?
c. Predict the price of an 11–year-old car using both the linear function and the quadratic function.
Directions: Use the equation A = Pet to answer each question and be sure to show all your work.
1. If $5,000 is deposited in an account that receives 6.1% interest compounded continuously, how much money is in the
account after 6 years?
2. After how many years will an account have $12,000 if $6,000 is deposited, and the account receives 3.8% interest
compounded continuously?
3. Abigail wants to save $15,000 to buy a car in 7 years. If she deposits $10,000 into an account that receives 5.7% interest
compounded continuously, will she have enough money in 7 years?
4. Daniel deposits $8,000 into a continuously compounding interest account. After 18 years, there is $13,006.40 in the account.
What was the interest rate?
5. An account has $26,000 after 15 years. The account received 2.3% interest compounded continuously. How much was
deposited initially?
TRIANGLES
INDEPENDENT PRACTICE
ription Criangle write and cow
Using each picture or description of triangle write and solve an equation in ordering the
number of degrees in each angle
TRIANGLE
EQUATION & WORK
ANGLE MEASURES
A
B
-(7x-2)°
(4x)
(3x)°
(5x − 10)
C
(5x – 2)
(18x)
E
3.
G
4.
H
(16x)°
LL
2A=
2B=
ZE=
Answer ASAP and every part, please. Structures.
Chapter 3 Solutions
College Algebra, Books a la Carte Edition, plus NEW MyLab Math- Access Card Package (6th Edition)
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