QuestionAugust 27, 2025

Find the inverse function for: f(x)=(x+12)/(2) f^-1(x)=[?]x+[ ]

Find the inverse function for: f(x)=(x+12)/(2) f^-1(x)=[?]x+[ ]
Find the inverse function for:
f(x)=(x+12)/(2)
f^-1(x)=[?]x+[ ]

Solution
4.3(191 votes)

Answer

f^{-1}(x) = 2x - 12 Explanation 1. Swap Variables Replace f(x) with y: y = \frac{x + 12}{2}. 2. Solve for x Multiply both sides by 2: 2y = x + 12. Subtract 12 from both sides: x = 2y - 12. 3. Express Inverse Function Swap x and y: y = 2x - 12.

Explanation

1. Swap Variables<br /> Replace $f(x)$ with $y$: $y = \frac{x + 12}{2}$.<br /><br />2. Solve for x<br /> Multiply both sides by 2: $2y = x + 12$.<br /> Subtract 12 from both sides: $x = 2y - 12$.<br /><br />3. Express Inverse Function<br /> Swap $x$ and $y$: $y = 2x - 12$.
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