Compound Interest Graphing Exponential Functions Growth and Decay

Is this exponential growth or decay?

• Growth

• Decay

What is the initial value for the function: f(x) = 300(1.16)^x?

• 300

• 1.16

• .16

• x

The original value of a painting is $1400, and the value increases by 9% each year. Write an exponential growth function to model this situation.

• y=1400(1.09)^x

• y=1.09(1400)^x

• y=1400(.91)^x

• y=1.09^x

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

• A.
• B.
• C.
• D.

Graph the exponential function that has a starting value of 8 and decreases by 12.5%.

Set the dotted line to y = 0.

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Which equation best matches the graph?

• y=2(2)^x

• y=(1/2)^x

Which of the following best represents the graph?

• y=2^x

• x=2^y

• y=x²

• y=2^-x

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

• Exponential Growth

• Exponential Decay

• Linear

• None