Functions (exponential and logarithmic)

A population of 25,000 bees decreases by 6.5% each year.

How many bees will there be after 10 years?

• 131

• 34,252

• 17,865

• 12,766

Tags

CCSS.HSF-LE.A.1C

The deer population in Brown County is growing by 35% each year. Currently, there are around 500 deer in the park. How many deer will there be 5 years from now?

• 2242 deer

• 675 deer

• 1661 deer

• around 1000 deer

Tags

CCSS.HSF-LE.A.1C

1. The population of a school of fish decreases at a rate of 18% per month. There are currently 500 fish in the school. How many fish will there be in 3 months?

• 276

• 0

• 822

• 476

Tags

CCSS.HSF-LE.A.1C

The city of Whoville has been much more stable since the Grinch turned his life around. The population of 900 is increasing at a rate of 7.5% per year. If the population continues growing at the same rate, how many people will there be in 11 years?

• 1288

• 1994

• 1642

• 1534

Tags

CCSS.HSF-LE.A.1C

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

• 14,327

• 839

• 4,309

• 7,689

Tags

CCSS.HSF-LE.A.1C

Ava is playing a video game in which she establishes and builds up a city. The population of this city is currently 190,000 people, a number that increases by 15% every year. What will the population be in 9 years?

• 666,666
• 666,936
• 668,396 
• 668,369

Tags

CCSS.HSF-LE.A.1C

You buy a new car for $14,000. It depreciates 21% per year. Find the value after 7 years. Round to the hundredth. Do not type the $ symbol.

Tags

CCSS.HSF-LE.A.1C

Since January 1980, the population of the city of Brownville has grown according to the mathematical model y=720,500(1.022)^x, where x is the number of years since January 1980. What is the percentage increase of the population annually?

• 720,500%
• 102.2%
• 2.2%
• 22%

Tags

CCSS.HSF-LE.A.1C

Using the model from the last problem

 $A\left(t\right)=9426\left(1.0963\right)^x$  predict the population in 2022.  Remember x is years since 2010

Tags

CCSS.HSF-LE.A.1C

In 1985, there were 285 cell phone subscribers in the small town of Jamestown. The number of subscribers increased by 75% per year after 1985. How many cell phone subscribers were in Jamestown in 1994?

• OVERFLOW

• 1994

• 1000

• 43871

Tags

CCSS.HSF-LE.A.1C