Hi i have a question to find the inverse, and i am kinda stuck. Can anyone please help me.
Y = Srt of X + 2X
Find the inverse.
Thanks in advance =]
I think, after thinking about it, that the correct solution is . My reasoning is that the original function is always above the line , so the inverse function must always be below the line . Note that the inverse is only defined for positive values of x, because the original function, which is also defined for only positive values of x, always produces positive outputs.
This method of checking confirms that my intuition was correct. For example: (4, 10) is a point on the original function, and (10, 4) is a point on the inverse. (1, 3) is a point on the original function, and (3, 1) is a point on the inverse. Edit: 11rdc11, your proof is comprehensive and thank you.