Posted by fatima on Sunday, September 16, 2012 at 2:45am.
Give an example of a function whose domain is {2,5,7} and whose range is {1,0,3}?

maths  Reiny, Sunday, September 16, 2012 at 9:25am
how about
y = (7/30)x^2  (117/90)x + 2/3 , x ∈ {2,5,7}
(test it, it works)