Question

Determine whether f: Zx Z → Z is one-to-one? is onto?

a) f(m, n) = 2m -n.
b) f(m, n) = m2 -n2.
c) f(m, n)=m +n +1.
d) f(m, n) = \m| - Inl.
e) f(m, n) = m2 - 4.

Answer 1

I think the correct anwser to this question is e

Explanation:

glad I could help :)