1 Answer

Shrikant Wandhare · Answer 1 · 2023-08-19T14:13:08+0000

Answer:

c.

Explanation:

Assuming we are not restricting the domain of f, the inverse isn't a function

$\frac{1}{ {x}^(2) } - 7$

$y = \frac{1}{ {x}^(2) } - 7$

$x = \frac{1}{ {y}^(2) } - 7$

$x + 7 = \frac{1}{ {y}^(2) }$

${y}^(2) = (1)/(x + 7)$

$y = \sqrt{ (1)/(x + 7) }$

Since square root are Positve or negative, the function will not be a function.

The correct answer is c.

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