Find the inverse of this function: y = 5 - 2y^2

Question

anonymous · Answer

Are you sure that is written right, I would think one of the variable should be an x

anonymous · Answer

To find inverse, swap X and Y variables and then rewrite to Y = something.

scarlettred · Answer

oh yeah sorry the second y is supposed to be an x

loser66 · Answer

hehehe. her function doesn't have x, just y, how to get inverse?

xapproachesinfinity · Answer

but again that function is not one-to-one correspondence
$$y=5-2x^2$$  parabolas have this problem you need domain restriction to find an inverse

anonymous · Answer

I figured as much...glad you understand

xapproachesinfinity · Answer

the question like this i would answer : no inverse

xapproachesinfinity · Answer

however if we move beyond functions
we can find a relation (equation ) that acts inversely with that equation
i'm saying equation (function means something different)
but you will see what i mean later if you have more math in your way...