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State whether each situation is best represented by an exponential or linear function. Then write an exponential or linear function for the model and state whether the model is increasing or decreasing. 1. Enrollment at a school is initially 454 students and grows by 3% per year. A salesperson initially earns $50,434 dollars per year and receives a yearly raise of $675. 2. 3. A customer borrows $450 at 5% interest compounded annually. 4. A wildlife park has 35 zebras and sends 1 zebra to another wildlife park each year.

State whether each situation is best represented by an exponential or linear function. Then write an exponential or linear function for the model and state whether the model is increasing or decreasing. 1. Enrollment at a school is initially 454 students and grows by 3% per year. A salesperson initially earns $50,434 dollars per year and receives a yearly raise of $675. 2. 3. A customer borrows $450 at 5% interest compounded annually. 4. A wildlife park has 35 zebras and sends 1 zebra to another wildlife park each year.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter9: Quadratic Functions And Equations
Section9.1: Graphing Quadratic Functions
Problem 74HP
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General Posts Files Class Notebook Assignments Grades File Home Insert Draw View Help Open in Browser v O Tell me what you want to de I U Calibri 11 ... State whether each situation is best represented by an exponential or linear function. Then write an exponential or linear function for the model and state whether the model is increasing or decreasing. 1. Enrollment at a school is initially 454 students and grows by 3% per year. A salesperson initially earns $50,434 dollars per year and receives a yearly raise of $675. 2. 3. A customer borrows $450 at 5% interest compounded annually. 4. A wildlife park has 35 zebras and sends 1 zebra to another wildlife park each year. 5. The value of a house is $546,768 and decreases by 3% each year. 6. The population of a town is 66,666 people and decreases by 160 people each year. 7. A business has a total income of $236,000 and revenues go up by 6.4% per year.
Transcribed Image Text:General Posts Files Class Notebook Assignments Grades File Home Insert Draw View Help Open in Browser v O Tell me what you want to de I U Calibri 11 ... State whether each situation is best represented by an exponential or linear function. Then write an exponential or linear function for the model and state whether the model is increasing or decreasing. 1. Enrollment at a school is initially 454 students and grows by 3% per year. A salesperson initially earns $50,434 dollars per year and receives a yearly raise of $675. 2. 3. A customer borrows $450 at 5% interest compounded annually. 4. A wildlife park has 35 zebras and sends 1 zebra to another wildlife park each year. 5. The value of a house is $546,768 and decreases by 3% each year. 6. The population of a town is 66,666 people and decreases by 160 people each year. 7. A business has a total income of $236,000 and revenues go up by 6.4% per year.
Expert Solution
Step 1

(1) Enrollment at school is initially 454 students and grows by 3% per year.

Formula:

Next value =Current value+Current value×3100

The data table is:

x (year) y (students)
0 454
1 467.62
2 481.6486
3 496.098058
4 510.98099974
5 526.310429732

Since, 467.62-454=13.62, 481.6486-467.62=14.0286

(a) It is clear that the change is not linear. Therefore, this situation represents an exponential function.

(b) We know that an exponential function is given by y=arx, where a=initial value, r=commom ratio

Here, a=454 and

467.62454=1.03, 481.6486467.62=1.03, 496.098058481.6486=1.03, ...

Therefore, r=1.03

The equation for the model is

                                      y=4541.03x

(c) The model is increasing.

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