Quiz about Modulus 9 Review- Test

Question 1

What is the initial amount for the function: f(x) = 300(1.16)^x?

Accepted Answer

300

Answer

1.16

Answer

.16

Answer

x

Question 2

Classify the model as Exponential GROWTH or DECAY.

$$A=10(1.01)^3$$

Accepted Answer

Growth $$y=a\left(1+r\right)^t$$

Answer

Decay $$y=a\left(1-r\right)^t$$

Question 3

Classify the model as Exponential GROWTH or DECAY.

$$A=1200(.85)^6$$

Accepted Answer

Decay $$y=a\left(1-r\right)^t$$

Answer

Growth $$y=a\left(1+r\right)^t$$

Question 4

An antibiotic is introduced into a colony of 12,000 bacteria during a laboratory experiment. The colony is decreasing by 14.9% per minute. Which function can be used to model the number of bacteria in the colony after x minutes?

Accepted Answer

f(x) = 12000(1 - 0.149)^x

Answer

f(x) = 12000(1 + 14.9)^x

Answer

f(x) = 12000(1 - 14.9)^x

Answer

f(x) = 12000(1 + 0.149)^x

Question 5

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(0.7)^x

Answer

y=30(5000)^x

Answer

y=5000(1.3)^x

Answer

y=5000xx

Question 6

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 7

Name this function.

Accepted Answer

Constant Function

Answer

Horizontal Function

Question 8

Name the parent function.

Accepted Answer

quadratic

Answer

linear

Answer

absolute value

Answer

exponential

Question 9

Which statement is true based on the data in the table?

Accepted Answer

The slope of f(x) is 3

Answer

f(x) is an exponential function

Answer

g(x) is a linear function

Answer

The y-intercept of g(x) is 10

Question 10

Select ALL that are true about this graph.

Accepted Answer

This is exponential

Accepted Answer

The y-intercept is 9

Accepted Answer

The equation is $y=9\left(3\right)^x$

Accepted Answer

The growth rate is 3

Answer

This is quadratic

Question 11

Identify the type of relationship

Accepted Answer

Exponential

Answer

Linear

Answer

Quadratic

Question 12

In the table, function 3 is

Accepted Answer

Quadratic

Answer

Linear

Answer

Exponential

Question 13

Identify the type of relationship

Accepted Answer

Linear

Answer

Quadratic

Answer

Exponential

Question 14

Based on the table, which function will have the greatest y-value for x = 100?

Accepted Answer

Function 2

Answer

Function 1

Answer

Function 3

Question 15

A stamp gets more expensive each year.  It increases in value by 60 % each year.  What is the growth FACTOR?

Accepted Answer

1.6

Answer

.6

Answer

1.06

Answer

.4

Question 16

Does the table show an exponential function pattern?

Accepted Answer

No, it is linear there is a constant rate of change of 2

Answer

Yes, there is a constant factor of 2

Answer

Yes, there is a constant factor of -2

Answer

No, there is no pattern

Question 17

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

Accepted Answer

Decay

Answer

Growth

Question 18

Is this exponential growth or decay?

Accepted Answer

Growth

Answer

Decay

Question 19

What is the growth rate in the function f(x)=2(1.44)^x

Accepted Answer

44%

Answer

144%

Answer

2%

Answer

X%

Question 20

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

Accepted Answer

Y-INTERCEPT

Answer

SLOPE

Answer

RATE OF CHANGE

Answer

COMMON RATIO

Question 21

What is the domain of the function shown below?

Accepted Answer

All Real Numbers

Answer

-2 < x < 5

Answer

0 < x < 12

Answer

y > 0

Question 22

Which of the following is NOT correct about the transformation of the graph 2^x

Accepted Answer

Reflection about the y-axis

Accepted Answer

Horizontal Shift to the left by 7

Accepted Answer

Vertical shift downward by 9

Answer

Reflection about the x-axis

Answer

Vertical Shift upwards by 9

Question 23

What kind of transformation is represented?

Accepted Answer

right 1 unit

Answer

up 1 unit

Answer

left 1 unit

Answer

down 1 unit

Question 24

What is the domain of the exponential function?

Accepted Answer

all real numbers

Answer

y > -1

Answer

y < -1

Answer

x > -1

Question 25

Which of the following has a ratio of 2? (select all that apply)

Accepted Answer

Option A is correct

Accepted Answer

Option C is correct

Answer

B.

Question 26

What is the range of the function shown below?

Accepted Answer

y > 0

Answer

0 < y < 12

Answer

-2 < y < 5

Answer

All Real Numbers

Question 27

This is a _______________ function.

Accepted Answer

Linear

Answer

Exponential

Answer

Quadratic

Question 28

True or False: This is an exponential function.

Accepted Answer

True

Answer

False

Question 29

What is the equation of the horizontal asymptote for following exponential function?

Accepted Answer

y = -4

Answer

y > -4

Answer

y < -4

Answer

(0, -3)

Question 30

What is the equation of the horizontal asymptote for following exponential function?

Accepted Answer

y = -2

Answer

y > -2

Answer

y < -2

Answer

(0, -2)

Question 31

What is the 'a' value of this exponential function?

Accepted Answer

81

Answer

9

Answer

1/3

Question 32

What is a decimal called that has a bar over it?

Accepted Answer

Repeating

Answer

Terminating

Answer

Rational

Answer

Irrational

Question 33

What does n represent?

Accepted Answer

Term you are trying to find

Answer

Number

Answer

Nothing

Question 34

Find the common ratio for the geometric sequence.

Accepted Answer

2

Answer

10

Answer

1/2

Answer

4

Question 35

What is the common ratio?

Accepted Answer

2

Answer

-2

Answer

4

Answer

Not enough information

Question 36

Did you prepare for this test

Accepted Answer

Yes

Answer

No

Question 37

Write the explicit formula for the geometric sequence. What is the 10th term?

Accepted Answer

a_n = 10(2)^n-1

⁵¹²⁰

Answer

a_n = 2(10)^n-1

^{2,000,000,000}

Answer

a_n = 10(2)ⁿ

^10,240

Answer

a_n = 2(10)ⁿ

^{20,000,000,000}

Modulus 9 Review- Test

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