The inverse function of y = x Square-1 (x ≤ - 1 / 2) Explanation helps the respondent to give an accurate answer

The inverse function of y = x Square-1 (x ≤ - 1 / 2) Explanation helps the respondent to give an accurate answer

The inverse function is to change the original x into y, where the domain of the original function is the domain of the inverse function, and the domain of the original function is the domain of the inverse function
Because the original function is y = x ^ 2-1, X ≤ - 1 / 2, that is, y ≥ - 3 / 4
So the inverse function is x = y ^ 2-1, X ≥ - 3 / 4, y ≤ - 1 / 2
That is, the inverse function is y = - √ (x + 1) (x ≥ - 3 / 4)