## Algebra 1

$A\times B=\{(reduce,plastic),(reuse,plastic),(recycle,plastic)\}$
$A\times B$ 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. $\ \ \ reduce\rightarrow\ \ |\overset\rightarrow\ plastic$ $\ \ \ reuse\rightarrow\ \ \ \ |\overset\rightarrow\ plastic$ $\ \ \ recycle\rightarrow\ \ |\overset\rightarrow\ plastic$