Question

Pls help me

1. f:A->B f(x)=4x-2
A={-2, -1, 0, 1, 2} B=?
2. f:A->B f(x)=x+1
B={-2, -1, 0, 1, 2} A=?

Answer 1

yellow

Explanation:

purple could be it too but its yellow