Identify the errors made in finding the inverse of y = x2 + 12x.

describe the three errors.

The student did not switch both instances of x with y. He should have written x = y2 + 12y.He wrote only the principal square root instead of using the ± sign.The domain is incorrect. For the radicand to be greater than or equal to zero, x must be less than or equal to zero. It should be x < 0.