Word Problems

The table shows the relationship between years and the account balance.  What model best represents the relationship?

• y=100(1.04)^x
• y=1.04x +100
• y=100(.04)x+100
• y=100(.04)x

Tags

CCSS.HSF.LE.A.2

In 1985, there were 285 cell phone subscribers in the small town of Centerville. The number of subscribers increased by 75% per year after 1985. The table shows the relationship between cell phone subscribers in Centerville and years.  
What model best represents the relationship?

• y=285x
• y=285(1.75)^x
• y=285(.75)x +285
• y=285^x

Tags

CCSS.HSF.LE.A.2

Bacteria can multiply at an alarming rate when each bacteria splits into two new cells, thus doubling. The table shows the relationship between hours and amount of bacteria.  
What model best represents the relationship?

• y=2(2)^x
• y=2x
• y=2x+2
• y=1(2)^x

Tags

CCSS.HSF.LE.A.2

Each year the local country club sponsors a tennis tournament. Play starts with 128 participants. During each round, half of the players are eliminated. How many players remain after 5 rounds?  

• 6 players
• 2 players
• 4 players
• 8 players

Tags

CCSS.HSF.BF.A.2

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

• 1%
• 3%
• 5%
• 4%

Tags

CCSS.HSF.LE.B.5

Convert to a decimal:
205%

• .205
• 20.5
• 2.05
• 205

Find the best model for the pattern in the table.

• y=(.20)^x
• y=(.25)^x
• y=(1.20)^x
• y=(.80)^x

Tags

CCSS.HSF.LE.A.2

Find the best model for the pattern in the table.

• y=4(5)^x
• y=5(2)^x
• y=2(5)^x
• y=4(2)^x

Tags

CCSS.HSF.LE.A.2