Answer
$A\times B=\{(1,-3),(1,-2),(1,-1),(1,0),(2,-3),(2,-2),(2,-1),(2,0),(3,-3),(3,-2),(3,-1),(3,0)\}$
Work Step by Step
$A\times B$ is a set of ordered pairs, where each element of A is mapped to each element of B. The element from A appears as the first element in the ordered pair.
$\ \ \ \ \ \ \ \ \ \ |\overset\rightarrow\ -3$
$\ \ \ \ \ \ \ \ \ \ |\overset\rightarrow\ -2$
$1\rightarrow\ \ |\overset\rightarrow\ -1$
$\ \ \ \ \ \ \ \ \ \ |\overset\rightarrow\ \ \ \ \ \ 0$
$\ \ \ \ \ \ \ \ \ \ |\overset\rightarrow\ -3$
$\ \ \ \ \ \ \ \ \ \ |\overset\rightarrow\ -2$
$2\rightarrow\ \ |\overset\rightarrow\ -1$
$\ \ \ \ \ \ \ \ \ \ |\overset\rightarrow\ \ \ \ \ \ 0$
$\ \ \ \ \ \ \ \ \ \ |\overset\rightarrow\ -3$
$\ \ \ \ \ \ \ \ \ \ |\overset\rightarrow\ -2$
$3\rightarrow\ \ |\overset\rightarrow\ -1$
$\ \ \ \ \ \ \ \ \ \ |\overset\rightarrow\ \ \ \ \ \ 0$
