Writing and interpreting exponential functions

Write the exponential equation that represents the given graph.

Which equation matches the graph?

• y=2(2)^x

• y=2(1/2)^x

• y=2^x

• y=1/2(2)^x

Which equation matches the graph?

• -2^x+2-3

• 2^x+3-2

• -2^x-2-3

• -2^x+1-2

Which equation matches this graph?

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Which equation matches the graph?

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What is the equation for this graph?

• y=2(5)^x

• y=2(4)^x

• y=3(2)^x

• y=2(3)^x

Which equation best describes the graph? (HINT: Put each equation in your calculator and look for the x-intercept (where y=0) and y-intercept (where x=0) and see if it matches)

•  $y=2^x+4$  

•  $y=2^x-3$  

•  $y=2^x-4$  

•  $y=2^x+3$  

The equation for this exponential function is

• y = 1(2^x)
• y = 1(4^x)
• y = 3x
• y = 1(3^x)

Which equation matches this graph?

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The equation for this exponential function is

• y = 1(2^x)
• y = 1(4^x)
• y = 3x
• y = 1(3^x)