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AA3-1 Investigation -- exponential growth and decay cloned 1/19/2021

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Last updated over 4 years ago
19 questions
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Question 1
1.

Describe what is happening to f(x) as x increases:

Question 2
2.

Write an equation for f(x)

Question 3
3.

Describe what is happening to f(x) as x increases:

Question 4
4.

Write an equation for f(x)

Question 5
5.

Describe what is happening to f(x) as x increases:

Question 6
6.

Write the equation of f(x), if possible

Question 7
7.

Describe what is happening to f(x) as x increases:

Question 8
8.

Write the equation of f(x), if possible.

You were likely unable to write the equation for the last two tables. They are exponential functions. In AA3-3, we will study graphing exponential functions in the form:
However, for now, we will write exponential functions centered at the origin so (h,k) is (0,0). As a result, we will write exponential functions in the form:
-- a is the starting value (f(0))
-- b is the rate of growth or decay (what we are multiplying by each time)
-- x is the number of times something occurs. It is often, but not always, an amount of time.
Question 9
9.

Because f(x) increases as x increases, this function is a model of exponential growth.
Write the exponential equation for this table:

Question 10
10.

Because f(x) decreases as x increases, this function is a model of exponential decay.
Write the exponential equation for this table:

Question 11
11.

Complete the table for f(x)=4(3)x by evaluating f(0), f(1), f(2), and f(3).
Don't forget (anything)0 = 1.
Depending on the calculator, you use the ^ button or ab or xy to create an exponent.

We have released a new and improved Graphing question type! Students will no longer be able to answer this question.
Question 12
12.

Is f(x) = 4(3)x a model for exponential growth or decay?

Question 13
13.

Complete the table for f(x)=4(0.75)x by evaluating f(0), f(1), f(2), and f(3).
Don't forget (anything)0 = 1.
Depending on the calculator, you use the ^ button or ab or xy to create an exponent.

We have released a new and improved Graphing question type! Students will no longer be able to answer this question.
Question 14
14.

Is f(x) = 4(0.75)x a model for exponential growth or decay?

Question 15
15.

Predict whether f(x) = 1/2 (5)x is a model for exponential growth or decay?

Question 16
16.

Complete the table for f(x)= 1/2 (5)x by evaluating f(0), f(1), f(2), and f(3).
Don't forget (anything)0 = 1.
Depending on the calculator, you use the ^ button or ab or xy to create an exponent.

We have released a new and improved Graphing question type! Students will no longer be able to answer this question.
Question 17
17.

Is f(x) = 1/2 (5)x is a model for exponential growth or decay?

Question 18
18.

How do you know if an exponential function will model growth or decay?

Question 19
19.

Match each exponential function:

Draggable itemarrow_right_altCorresponding Item
decay
arrow_right_alt
f(x)=8(1.7)x
decay
arrow_right_alt
f(x)=8(0.7)x
neither
arrow_right_alt
f(x)=8(1/4)x
growth
arrow_right_alt
f(x)=1/4(8)x
growth
arrow_right_alt
f(x)=8(0)x
neither
arrow_right_alt
f(x)=8(1)x
growth
arrow_right_alt
f(x)=1(8)x