Exponential Equations

Presentation

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Mathematics

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9th Grade

•

Practice Problem

•

Medium

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CCSS

HSF.LE.A.2, HSF.LE.B.5, HSF.BF.A.2

Standards-aligned

Carrie Johnson

Used 116+ times

FREE Resource

1 Slide • 14 Questions

Exponential Equations

Multiple Choice

The number of mosquitoes at the beginning of the summer was 4,000. The population of mosquitoes is expected to grow at a rate of 25% a month. How many mosquitoes will there be after 4 months?

9765

9006

5433

9766

Multiple Choice

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

y = 15(35)^x

y = 15(0.35)^x

y = 15(1.35)^x

y = 35(1.15)^x

Multiple Choice

An adult takes 800 mg of ibuprofen. Each hour, the amount of ibuprofen in the person’s system decreases by about 29%. How much ibuprofen is left after 6 hours?

101

102

103

104

Multiple Choice

You bought a Boston Whaler in 2004 for $12,500. The boat's value depreciates by 7% a year. How much is the boat worth in 2012?

$11625

$6994.77

$21,477

$875

Multiple Choice

An adult takes 400 mg of ibuprofen. Each hour, the amount of ibuprofen in the person’s system decreases by about 29%.
What is the multiplier for this problem?

1.29

.71

.29

1.71

Multiple Choice

The population of Winnemucca, Nevada, can be modeled by P=6191(1.04)^t where t is the number of years since 1990. What percent did the population increase each year?

It doesn't say

I don't know

400%

Multiple Choice

The population of Winnemucca, Nevada, can be modeled by P=6191(1.04)^twhere t is the number of years since 1990. What was the population in 1990?

0 people

It doesn't say

I don't know

6191

Multiple Choice

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

SLOPE

RATE OF CHANGE

Y-INTERCEPT

COMMON RATIO

Multiple Choice

The equation for this table is

y = 3x + 50

y = 50^x

y = 3^x

y = 50(3^x)

Multiple Choice

The equation for this table is

y = 1(2^x)

y = 1(12^x)

y = 12x

y = 12x + 1

Multiple Choice

The growth factor for this table is

144

Multiple Choice

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

(.27)^x

.27

3.51

Multiple Choice

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

Exponential Growth

Exponential Decay

Linear

None of the above

Multiple Choice

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

Exponential Equations

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