Growth/Decay Test

Is this exponential growth or decay?

• Growth
• Decay

What function type models this graph?

• Exponential Growth
• Exponential Decay
• Linear 
• None of the above

Tags

CCSS.HSF-IF.C.7E

Suppose a culture of bacteria begins with 5000 cells and dies by 30% each year. Write an equation that represents this situation.

• y=5000(0.7)^x
• y=30(5000)^x
• y=5000(1.3)^x
• y=5000x^x

Tags

CCSS.HSF.LE.A.2

Make the percent to decimal.
7.25%

• 7.25
• 72.5
• 0.725
• 0.0725

Your shiny new boat cost $7650.  The depreciation for your boat is 14% per year.  What is the equation that models this problem for the value of the vehicle in 3 years?

• y= 7650(.14)³
• y= 7650(.86)³
• y= 7650(-.14)³
• y= 7650(1.14)³

If I had a baseball that was worth $3500 and it was reported to increase in value at a rate of 5% per year what would the ball be worth in 7 years?

• Worth $4924.85 in 7 years

• Worth $4924.80 in 7 years

• Worth $4924 in 7 years

Tags

CCSS.HSF.BF.A.2

The number of players in Fortnite have increased daily by 12%. If on March 15 there were 226,000 players, how many players would there be 5 days later.

• 253,120 players

• 457,230 players

• 812,673 players

• 398,289 players

Tags

CCSS.HSF-LE.A.1C

A singles tennis tournament has 256 players. Half of the field is eliminated in each round. How many player a left after 5 rounds?

• 14 players

• 25 players

• 8 players

• 4 players

Tags

CCSS.HSF.BF.A.2

The value of a car is $15,000 and depreciates at a rate of 8% per year. What is the decay factor?

• ^.80

• ^1.08

• .92

• 8

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?

• 14327
• 4309
• 839
• 7680

Tags

CCSS.HSF-LE.A.1C