Let A = {x | -1<x<1} = B. The function f(x)=x/2 from A to B is:
A. injective
B. surjective
C. both injective and surjective
D. neither injective nor surjective
Answer:C
Let A = {x | -1<x<1} = B. The function f(x)=x/2 from A to B is:
A. injective B. surjective C. both injective and surjective D. neither injective nor surjective