Exponential Function Practice Problems

What is the y-intercept of the function?

• 2
• 3
• 1
• -2

Is the graph linear, exponential or neither?

• Linear
• Exponential
• Neither

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

• Exponential Growth
• Exponential Decay
• Linear
• None

Which represents exponential decay?

• A

• B

• C

• D

Is the pictured graph growth, decay, or linear or quadratic?  

• Growth
• Decay
• Linear
• Quadratic

Is the pictured graph growth, decay, or linear or quadratic?  

• Growth
• Decay
• Linear
• Quadratic

What is the range of this graph?

• y = 6
• (0, -4)
• y > -6
• y < -6

Is the pictured graph growth, decay, or linear or quadratic?  

• Growth
• Decay
• Linear
• Quadratic

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

• y = 15(35)^x
• y = 15(1.35)^x
• y = 15(0.35)^x
• y = 35(1.15)^x

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