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

check your answer. did you identify these three errors correctly?

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.

the distance from any point on the parabola to the focus is the exact same as the distance from that point to the directrix.

if you could provide answer choices that might allow me to answer the question easier if my above answer isn't an option! (: