Question

Seja a função f : a > b
X l> y=2x
Onde A = {-3,-1,1,3} e B = {-6,-4,-2,0,2,4,6}, obtenha D(f) e Im(f).
Help pls gentii!!!!

Answer 1

-3 ---------------> -6
-1 ---------------> -2
1 ---------------->  2
3 ----------------> 6

D(f) = {-3, -1, 1, 3}
Im(f) = {-6, -2, 2, 6}