Quiz about Exponential Assignment

Question 1

In an exponential function, what does the 'a' represent?

Accepted Answer

Y-INTERCEPT

Answer

SLOPE

Answer

RATE OF CHANGE

Answer

COMMON RATIO

Question 2

What is a, the starting term, for the function: f(x) = 300(1.16)^x?

Accepted Answer

300

Answer

1.16

Answer

.16

Answer

x

Question 3

Classify the model as Exponential GROWTH or DECAY.
A=1200(.85)⁶

Accepted Answer

Decay

Answer

Growth

Question 4

Classify the model as Exponential GROWTH or DECAY.
A=10(1.01)³

Accepted Answer

Growth

Answer

Decay

Question 5

Is the pictured graph growth, decay, or linear or none?

Accepted Answer

Exponential Growth

Answer

Exponential Decay

Answer

Linear

Answer

None

Question 6

Is this exponential growth or decay?

Accepted Answer

Decay

Answer

Growth

Question 7

Identify the y-intercept (initial value) of the function f(x)=2(4)^x.

Accepted Answer

2

Answer

4

Answer

(2)x

Answer

8

Question 8

Identify the y-intercept (initial value) in the function f(x)=13(.27)^x

Accepted Answer

13

Answer

(.27)x

Answer

.27

Answer

3.51

Question 9

Is the graph linear, exponential or neither?

Accepted Answer

Linear

Answer

Exponential

Answer

Neither

Question 10

Suppose a culture of bacteria begins with 5000 cells and dies by 30% each year. Write an equation that represents this situation.

Accepted Answer

y=5000(1 - 0.30)^x

Answer

y=30(5000)^x

Answer

y=5000(1 + 0.30)^x

Answer

y=5000xx

Question 11

Change 6.75% to a decimal.

Accepted Answer

.0675

Answer

67.5

Answer

.675

Answer

675

Question 12

Change 11.2% to a decimal.

Accepted Answer

0.112

Answer

11.2

Answer

1.12

Answer

0.0112

Question 13

The value of a car is $15,000 and depreciates at a rate of 8% per year. What is the decay factor?

Accepted Answer

.92

Answer

.08

Answer

1.08

Answer

8

Question 14

Which of the following functions shows an initial amount of $15 and an increase of 35% each year?

Accepted Answer

y = 15(1.35)^x

Answer

y = 15(35)^x

Answer

y = 15(0.35)^x

Answer

y = 35(1.15)^x

Question 15

Write an equation that models the following situation:
Samantha's hair was known to grow very rapidly. It began at a length of 6 in and grew at a rate of 14% a week.

Accepted Answer

y=6(1.14)^x

Answer

y=6(0.14)^x

Answer

y=6(1+14)^x

Answer

y=6(0.86)^x

Question 16

A population of fish starts at 8,000 and decreases by 6% per year. What is the population of fish after 10 years?

Accepted Answer

4309

Answer

14327

Answer

839

Answer

7680

Question 17

Steve deposited

$5,000 in a savings account that pays 4% interest compounded annually. Which

equation could be used to find the value of the account after 3 years?

Accepted Answer

A = 5,000(1 + 0.04)³

Answer

A = 5,000(1 + 4)³

Answer

A = 5,000(1 + 0.4) x 3

Answer

A = 5,000(0.04)³

Question 18

The amount of ants in a colony, f, that is decaying can be modeled by f(x) = 800(.87)^x, where x is the number of days since the decay started. Suppose f(20) = 49. Which of the following is true?

Accepted Answer

After 20 days, there are 49 ants in the colony.

Answer

After 49 days there are 20 ants in the colony.

Answer

The amount of ants times 20 is 49.

Answer

After 20 days the amount of ants remaining decreases by 49.

Question 19

The expression 12(1.015)^t models the population of elephants in a wildlife refuge after t years since 1975.
What does the value 1.015 represent?

Accepted Answer

The number of elephants increases by 1.5% each year.

Answer

The number of elephants was 1,015 in 1975.

Answer

The number of elephants increases by 101.5% each year.

Answer

The number of elephants is multiplied by 1.015 each year.

Exponential Assignment

20 questions

In an exponential function, what does the 'a' represent?

What is a, the starting term, for the function: f(x) = 300(1.16)^x?

Classify the model as Exponential GROWTH or DECAY.
A=1200(.85)⁶

Classify the model as Exponential GROWTH or DECAY.
A=10(1.01)³

Is the pictured graph growth, decay, or linear or none?

Is this exponential growth or decay?

Identify the y-intercept (initial value) of the function f(x)=2(4)^x.

Identify the y-intercept (initial value) in the function f(x)=13(.27)^x

Is the graph linear, exponential or neither?

Suppose a culture of bacteria begins with 5000 cells and dies by 30% each year. Write an equation that represents this situation.

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Exponential Assignment

20 questions

In an exponential function, what does the 'a' represent?

What is a, the starting term, for the function: f(x) = 300(1.16)x?

Classify the model as Exponential GROWTH or DECAY.A=1200(.85)6

Classify the model as Exponential GROWTH or DECAY.A=10(1.01)3

Is the pictured graph growth, decay, or linear or none?

Is this exponential growth or decay?

Identify the y-intercept (initial value) of the function f(x)=2(4)x.

Identify the y-intercept (initial value) in the function f(x)=13(.27)x

Is the graph linear, exponential or neither?

Suppose a culture of bacteria begins with 5000 cells and dies by 30% each year. Write an equation that represents this situation.

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Mathematics

What is a, the starting term, for the function: f(x) = 300(1.16)^x?

Classify the model as Exponential GROWTH or DECAY.
A=1200(.85)⁶

Classify the model as Exponential GROWTH or DECAY.
A=10(1.01)³

Identify the y-intercept (initial value) of the function f(x)=2(4)^x.

Identify the y-intercept (initial value) in the function f(x)=13(.27)^x