Free Printable 7.1-7.3 Review

1.

This is an example of:

a)

Linear Growth

b)

Linear Decay

c)

Exponential Growth

d)

Exponential Decay

2.

This is an example of:

a)

Linear Growth

b)

Linear Decay

c)

Exponential Growth

d)

Exponential Decay

3.

How do you know that this was exponential growth? $f\left(x\right)=0\ .25\ \left(\ 1.3\right)^x$

a)

Because the 0.25 was bigger than one

b)

Because the 1.3 was bigger than one

c)

Because the 0.25 was less than one

d)

Because the 1.3 was less than one

4.

This function represents the number of ants in a colony $f\left(x\right)=3\ \left(\ 2\right)^x$ How many ants did you begin with?

a)

There was 2 ants

b)

There was 3 ants

c)

The equation doesn't tell us

5.

A flea medicine breaks down at a rate of 20% per hour. This is the rate of decay of the medicine. The initial dose is 60 milligrams. Which of the following represent the equation the models the amount of flea medicine left in an animal?

a)

$y=60\left(.2\right)^x$

b)

$y=20\left(60\right)^x$

c)

$y=60\left(.8\right)^x$

d)

$y=60\left(1.2\right)^x$

6.

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

a)

Growth

b)

Decay

7.

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

a)

14327

b)

4309

c)

839

d)

7680

8.

Classify the model as Exponential GROWTH or DECAY.

$A=10(1.01)^3$

a)

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

b)

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

9.

Penicillin decays exponentially in the human body. Suppose you receive a 300-milligram dose of penicillin to combat strep throat. About 180 milligrams will remain active in your body after 1 day. Which equation represents the amount of penicillin remaining in your body?

a)

$y=300\left(0.6\right)^x$

b)

$y=300\left(1.6\right)^x$

c)

$y=300\left(1.67\right)^x$

d)

$y=300\left(0.4\right)^x$

10.

Emily’s parents put $1,500 in her bank account for college tuition. At an interest rate of 8.25% compounded semiannually,what will be the balance after 18 years?

a)

$6,273.50 frustrated

b)

$6,314.08 bewildered

c)

$6,385.72 pleased

d)

$6,427.94 tickled pink

11.

Which graph matches this equation?

a)

b)

c)

d)

12.

What type of function is y = 7(5/4)^x?

a)

Exponential Growth

b)

Exponential Decay

c)

Linear

d)

None of the above

13.

What is the range of this graph?

a)

y = 6

b)

(0, -4)

c)

y > -6

d)

y < -6

14.

What type of function is f(x)=2(1/7)^x ?

a)

Exponential Growth

b)

Linear

c)

Exponential Decay

d)

None of the Above

15.

What is the name of Elsa’s younger sister in “Frozen”

a)

Princess Anna

b)

Princess Diana

c)

Catherine, Duchess of Cambridge

d)

Miss Piggy

16.

In the Avengers movies, which superhero does Bruce Banner transform into?

a)

The Hulk

b)

Ant Man

c)

Darth Vader

d)

Wreck-it-Ralph

17.

In Monsters Inc, what is used to power the monster’s city?

a)

Electricity

b)

Tears

c)

Bad Breath

d)

Screams

18.

Who is the Disney character whose catch phrase is “To infinity and beyond”

a)

Rey Skywalker

b)

Wall-E

c)

Buzz Lightyear

d)

Donald Duck

19.

In the movie finding Nemo, what type of fish is Nemo?

a)

Clownfish

b)

Megalodon

c)

Salmon

d)

Mahi-Mahi

20.

What does Mary Poppins say a spoonful of sugar does for children?

a)

Makes your teeth fall out

b)

Helps the medicine go down

c)

Makes you super hyper

d)

Helps you run faster

7.1-7.3 Review

Total questions: 20

Worksheet time: 33mins

Similar Resources on Wayground