College Algebra - MyLab Math - HW#6: Question #5

Determine whether a function is​ one-to-one. If it​ is, find a formula for its inverse.

[ninjanerswanson]

If there are two answers for the inverse function, how do I know which one to choose? I got the other version of the inverse function you chose for this video, I didn’t factor, I chose just to move the 7x over and divide.