Questions: Use transformations of the graph (y=e^x) to graph the function. Write the domain and range in interval notation. (f(x)=e^x+1)

Use transformations of the graph (y=e^x) to graph the function. Write the domain and range in interval notation.

(f(x)=e^x+1)
Transcript text: 18 Multiple Choice 1 point Use transformations of the graph $y=e^{x}$ to graph the function. Write the domain and range in interval notation. \[ f(x)=e^{x}+1 \]
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Solution

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Solution Steps

Step 1: Identify the Base Function

The base function given is y=ex y = e^x . This is an exponential function with a horizontal asymptote at y=0 y = 0 .

Step 2: Determine the Transformation

The function f(x)=ex+1 f(x) = e^x + 1 is a vertical shift of the base function y=ex y = e^x . Specifically, it is shifted 1 unit upwards.

Step 3: Graph the Transformed Function

To graph f(x)=ex+1 f(x) = e^x + 1 , take the graph of y=ex y = e^x and shift every point 1 unit upwards. The horizontal asymptote of the graph will also shift from y=0 y = 0 to y=1 y = 1 .

Step 4: Determine the Domain

The domain of the function f(x)=ex+1 f(x) = e^x + 1 is the same as the domain of the base function y=ex y = e^x , which is all real numbers. In interval notation, this is: (,) (-\infty, \infty)

Step 5: Determine the Range

The range of the function f(x)=ex+1 f(x) = e^x + 1 is all values greater than 1, since the graph is shifted 1 unit upwards. In interval notation, this is: (1,) (1, \infty)

Final Answer

  • Domain: (,)\boxed{(-\infty, \infty)}
  • Range: (1,)\boxed{(1, \infty)}
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