Fri. 3/19 -- Exponential Functions Review

What type of function is f(x)=2(1/7)^x ?

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

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

• Exponential Growth
• Exponential Decay
• Linear
• None

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

• SLOPE
• RATE OF CHANGE
• INITIAL AMOUNT
• GROWTH OR DECAY FACTOR

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

Which equation is represented by the table?

• y = 40(2)^x

• y = 40(1/2)^x

• y = 40 - 2x

• y = 40 - 1/2x

What is the asymptote of y = 2^x - 3

• y = 0

• y = -3

• x = 0

• x = -3

What is the asymptote of the function y=5(0.5)^x ?

• y=5

• y=0.5

• y=0

• y=1

What kind of transformation is represented?

• up 1 unit
• left 1 unit
• right 1 unit 
• down 1 unit

Which of the following represents the correct transformation of 2^x

• Horizontal Shift to the left by 7

• Vertical Shift to upward by 7

• Horizontal Shift to the right by 7

• Vertical shift downward by 7

Eren would like to buy some new furniture for his home. He decides to buy the furniture on credit with 9.5% interest compounded quarterly.

If he spent $7,400, what exponential equation can be used to find how much he will pay after 8 years?

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