Question:medium
The inverse of the function $f(x) = x^2 + 4x + 4, \, x \leq -2$ is $f^{-1}(x) =$
The inverse of the function $f(x) = x^2 + 4x + 4, \, x \leq -2$ is $f^{-1}(x) =$
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For inverse of quadratic functions, always use domain restriction to select correct sign of square root.
Updated On: Apr 24, 2026
- $-2 - \sqrt{x}, \, x \geq 0$
- $-2 - \sqrt{x-1}, \, x \geq 1$
- $-2 - \sqrt{x}, \, x \geq 2$
- $-2 - \sqrt{x}, \, x \geq 4$
- $-2 - \sqrt{x}, \, x \geq 5$
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The Correct Option is A
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