Questions: What is the range of the inverse function of f(x) = sqrt(x)?

What is the range of the inverse function of f(x) = sqrt(x)?
Transcript text: What is the range of the inverse function of $f(x)=\sqrt{x}$ ?
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Solution

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Solution Steps

To find the range of the inverse function of \( f(x) = \sqrt{x} \), we first need to determine the domain of the original function \( f(x) \). The function \( f(x) = \sqrt{x} \) is defined for \( x \geq 0 \). The inverse function \( f^{-1}(x) \) will have a domain that is the range of \( f(x) \), which is \( [0, \infty) \). Therefore, the range of \( f^{-1}(x) \) will be the domain of \( f(x) \), which is also \( [0, \infty) \).

Step 1: Determine the Domain of the Original Function

The function \( f(x) = \sqrt{x} \) is defined for \( x \geq 0 \). This is because the square root function is only defined for non-negative values of \( x \).

Step 2: Determine the Range of the Original Function

The range of \( f(x) = \sqrt{x} \) is \( [0, \infty) \). As \( x \) increases from 0 to infinity, \( \sqrt{x} \) also increases from 0 to infinity.

Step 3: Determine the Domain of the Inverse Function

The domain of the inverse function \( f^{-1}(x) \) is the range of the original function \( f(x) \). Therefore, the domain of \( f^{-1}(x) \) is \( [0, \infty) \).

Step 4: Determine the Range of the Inverse Function

The range of the inverse function \( f^{-1}(x) \) is the domain of the original function \( f(x) \). Therefore, the range of \( f^{-1}(x) \) is \( [0, \infty) \).

Final Answer

\(\boxed{[0, \infty)}\)

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