A movie theater has only 600 seats, so the number of tickets must be no more than 600. At a certain movie showing, there were at least as many children at the movie as adults.
This information can be represented by the following inequalities, where a represents the number of adults attending the movie and c represents the number of children attending the movie.
a+c≤600
c ≥a
The inequalities are graphed below.
Which region of the graph represents the attendance which meets neither of the above criteria?
a. IV
b.II
c.l
d.lll