Exponential functions

T1 Which function models the data in the table?

Tags

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.2

• 0

• 1

• 27

• 270

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CCSS.HSF.IF.A.2

T2 Thomas counts the number of cars he sees in the parking lot of the school each hour of the day. He counted the following number of cars the first four hours of the day. 1st hour 12, 2nd hour 24, 3rd hour 36, 4th hour 48. What is true of the function Thomas wrote that represents the number of cars as a function of the number of hours, h? Select all that apply.

• The function is linear.

• The function is exponential.

• The common ratio is 12.

• The common difference is 12.

Tags

CCSS.HSF.LE.A.1

• The y-intercept is 8000.

• The function shows an investment that increases exponentially.

• The interest rate is 2.5% per year.

• The investment doubles every 2.5 years.

Tags

CCSS.HSF.LE.B.5

Is the graph linear, exponential or neither?

• Linear
• Exponential
• Neither

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

• Growth
• Decay
• Linear
• None

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

• Growth
• Decay
• Linear
• None

What is the y-intercept of the function?

• 2
• 3
• 1
• -2

Identify the y-intercept (initial value) in the function f(x)=13(.27)^x

• (.27)^x
• .27
• 13
• 3.51

In an exponential function, what does the 'a' represent? 

• SLOPE
• RATE OF CHANGE
• Y-INTERCEPT
• COMMON RATIO