Answer :
x + y < = 900
(450,450)...x = 450, y = 450
the ordered pair is included because 450 + 450 = 900...and ur inequality specifies that it can be equal.....now if ur inequality did not include the equal sign, and it was just <, then it would not have been a solution.
(450,450)...x = 450, y = 450
the ordered pair is included because 450 + 450 = 900...and ur inequality specifies that it can be equal.....now if ur inequality did not include the equal sign, and it was just <, then it would not have been a solution.