Exam 18: Exponential Functions and Their Graphs

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Match the graph with its exponential function. ​​ Match the graph with its exponential function. ​​   ​

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What is the value of the function f(x)=150e0.4xf ( x ) = 150 e ^ { 0.4 x } at x=2.3x = 2.3 ? Round to 3 decimal places.

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Select the graph of the exponential function.​ g(x)=6+exg ( x ) = 6 + e ^ { - x }

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Select the graph of the exponential function.​ f(x)=4x+16f ( x ) = 4 ^ { x + 1 } - 6

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Evaluate the function at the indicated value of x.Round your result to three decimal places. ​ Function Value h(x)=exh ( x ) = e ^ { - x } x=58x = \frac { 5 } { 8 }

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Use a graphing utility to construct a table of values for the function.Round your answer to three decimal places.​ f(x)=3ex+4f ( x ) = 3 e ^ { x + 4 }

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Use a graphing utility to construct a table of values for the function.Round your answer to three decimal places.​ f(x)=e5xf ( x ) = e ^ { 5 x }

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Use a graphing utility to construct a table of values for the function.Round your answer to two decimal places.​ f(x)=3xf ( x ) = 3 ^ { - x }

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Sketch the graph of the function ​​ f(x)=2x/2f ( x ) = 2 ^ { x / 2 } Sketch the graph of the function ​​  f ( x ) = 2 ^ { x / 2 }  ​

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Select the graph of the function.​ f(x)=4ex+5f ( x ) = 4 e ^ { x + 5 }

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Select the graph of the exponential function.​ f(x)=2xf ( x ) = 2 ^ { - | x | }

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Select the graph of the function.​ f(x)=2x1f ( x ) = 2 ^ { x - 1 }

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Use the One-to-One Property to solve the equation for x.​ 5x+1=255 ^ { x + 1 } = 25

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Use a graphing utility to construct a table of values for the function.Round your answer to two decimal places.​ f(x)=(15)xf ( x ) = \left( \frac { 1 } { 5 } \right) ^ { x }

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Find the value of b that would cause the graph of y = bx to look like the graph below.​ Find the value of b that would cause the graph of y = b<sup>x</sup> to look like the graph below.​   ​

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After t years,the value of a wheelchair conversion van that originally cost $39,000 depreciates so that each year it is worth 78\frac { 7 } { 8 } of its value for the previous year.Find a model for V(t),the value of the van after t years. ​

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Use the One-to-One Property to solve the equation for x.​ e6x+5=e6e ^ { 6 x + 5 } = e ^ { 6 }

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Use a graphing utility to determine which graph below is the graph of the function.​ s(x)=1.1e(x1)2s ( x ) = 1.1 e ^ { - ( x - 1 ) ^ { 2 } }

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Graph the function using translations.​ f(x)=ex+1+2f ( x ) = e ^ { x + 1 } + 2

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Complete the table to determine the balance A for P dollars invested at rate r for t years and compounded n times per year.​ P=$1100;r=2%;t=10 year P = \$ 1100 ; r = 2 \% ; t = 10 \text { year }

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