How do you know that this was exponential decay? f ( x ) = 25 ( 0.20 ) x f\left(x\right)=\ 25\ \left(\ 0.20\right)^x f ( x ) = 2 5 ( 0 . 2 0 ) x

Because the 0.20 was less than one

Because the 25 was bigger than one

Because the 0.20 was bigger than one

Because the 25 was less than one

How do you know that this was exponential growth? f ( x ) = 0 . 25 ( 1.3 ) x f\left(x\right)=0\ .25\ \left(\ 1.3\right)^x f ( x ) = 0 . 2 5 ( 1 . 3 ) x

Because the 1.3 was bigger than one

Because the 0.25 was bigger than one

Because the 0.25 was less than one

Because the 1.3 was less than one

How do you know that this was exponential decay? f ( x ) = 90 ( 1 2 ) x f\left(x\right)=90\ \left(\ \frac{1}{2}\right)^x f ( x ) = 9 0 ( 2 1 ) x

Because the 1/2 was less than one

Because the 90 was bigger than one

Because the 1/2 was bigger than one

Because the 90 was less than one

Quiz 4 Practice- Growth and Decay functions

Quiz

•

Mathematics

•

9th Grade

•

Practice Problem

•

Hard

•

CCSS

HSF-IF.C.8B, HSF.LE.A.2, HSF-IF.C.7E

+5

Standards-aligned

Kimberly Sanquilly

Used 19+ times

FREE Resource

17 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

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

SLOPE

RATE OF CHANGE

Y-INTERCEPT

COMMON RATIO

Tags

CCSS.HSF.LE.B.5

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

A population of 2200 beetles is too large to sustain and decreases in population each month at a rate of 5%. How would you write your decay factor, b?

-5

-.05

.95

.05

Tags

CCSS.HSF-LE.A.1C

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

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.

y=6(0.14)^x

y=6(1+14)^x

y=6(1.14)^x

y=6(0.86)^x

Tags

CCSS.HSF.LE.A.2

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Determine if the graph represents growth or decay. Also determine the y-intercept.

decay, 5

decay, 1

growth, 5

growth, 1

Tags

CCSS.HSF-IF.C.7E

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Which of the graphs below represents y = 6(2)^x?

Tags

CCSS.HSF-IF.C.7E

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

A population of 1500 deer decreases by 1.5% per year. At the end of 10 years, there will be approximately 1290 deer in the population. Which function can be used to determine the number of deer, y, in this population at the end of t years?

y = 1500(1 - 0.015)^t

y = 1500(0.015)^t

y = 1500(1 + 0.015)^t

y = 1500(1.5)^t

Tags

CCSS.HSF.LE.A.2

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

There were 417 cell phones sold at an electronics store in January. Since then, cell phone sales at this store have increased at a rate of 3.75% per month. At this rate of growth, which function can be used to determine the monthly cell phone sales x months after January?

f(x) = 417(3.75)^x

f(x) = 417(0.0375)^x

f(x) = 417(1.0375)^x

f(x) = 417(1.375)^x

Tags

CCSS.HSF.LE.A.2

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Quiz 4 Practice- Growth and Decay functions

17 questions

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

A population of 2200 beetles is too large to sustain and decreases in population each month at a rate of 5%. How would you write your decay factor, b?

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.

Determine if the graph represents growth or decay. Also determine the y-intercept.

Which of the graphs below represents y = 6(2)^x?

A population of 1500 deer decreases by 1.5% per year. At the end of 10 years, there will be approximately 1290 deer in the population. Which function can be used to determine the number of deer, y, in this population at the end of t years?

There were 417 cell phones sold at an electronics store in January. Since then, cell phone sales at this store have increased at a rate of 3.75% per month. At this rate of growth, which function can be used to determine the monthly cell phone sales x months after January?

This is an example of:

This is an example of:

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Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Mathematics

Quiz 4 Practice- Growth and Decay functions

17 questions

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

A population of 2200 beetles is too large to sustain and decreases in population each month at a rate of 5%. How would you write your decay factor, b?

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.

Determine if the graph represents growth or decay. Also determine the y-intercept.

Which of the graphs below represents y = 6(2)x?

A population of 1500 deer decreases by 1.5% per year. At the end of 10 years, there will be approximately 1290 deer in the population. Which function can be used to determine the number of deer, y, in this population at the end of t years?

There were 417 cell phones sold at an electronics store in January. Since then, cell phone sales at this store have increased at a rate of 3.75% per month. At this rate of growth, which function can be used to determine the monthly cell phone sales x months after January?

This is an example of:

This is an example of:

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Mathematics

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.

Which of the graphs below represents y = 6(2)^x?