Exponential vs Linear Function

The population of Cary, NC in the year 2000 was 97,400 people. The population steadily grew by 2.5% each year. What type of function is this?

• Linear

• Exponential Growth

• Neither

• Exponential Decay

Is the Equation Linear or Exponential?

• Linear

• Exponential

Is the pictured graph growth, decay, linear or none?  

• Exponential Growth

• Exponential Decay

• Linear

• None

Consider the relationship represented by this table. Is it linear, exponential or neither?

• Linear

• Exponential

• Neither

Consider the relationship represented by this table. Is it linear, exponential or neither?

• Linear

• Exponential

• Neither

Consider the relationship represented by this table. Is it linear, exponential or neither?

• Linear

• Exponential

• Neither

A bank account starts with $10. Every month, the amount of money in the account is tripled. Write an equation to represent this situation.

(Hint: Determine if it's linear or exponential first!)

• y=3(10)^x

• y=10(3)^x

• y=10(1.3)^x

• y=3x+10

There are 20,000 owls in the wild. Every decade, the number of owls is halved. Write an equation to model this situation. (Hint: Determine if it's linear or exponential first!)

• y=20000-(1/2)x

• y=20000+(1/2)x

• y=20000(0.5)^x

• y=20000(50)^x

Which of the following is an increasing exponential function whose y-intercept is 50?

• y = 50(.05)^x

• y = 50x - 4

• y = (2)^x + 50

• y = 50(1.4)^x

Write an equation that models the following situation: Izzy'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