Question

Is this a function?
3-digit positive integer(x) - Reverse of 3-digit positive integer = Difference (Y)

Difference ( X ) + Reverse of difference (X) = Final number (Y)

Domain is = X
Co-domain = Difference + Final number
Range = Like the Co-domain.

Do you think this is right?

Answer 1

@JamesJ

Answer 2

@robtobey @AccessDenied

Answer 3

@blurbendy @Jonask