Use graphs to find the set.
-$( - \infty , 9 ) \cup [ - 6,18 )$
A) $( 9,18 )$
B) $( - \infty , - 6 ]$
C) $[ - 6,9 )$
D) $( - \infty , 18 )$

Question

Quizplus · Accepted Answer

The set $( - \infty , 9 ) \cup [ - 6,18 )$ includes all numbers from negative infinity up to 9 (not including 9) and from -6 (including -6) up to 18 (not including 18). When these two sets are combined, they cover all numbers from negative infinity up to 18 (not including 18), which is represented by $( - \infty , 18 )$.

Use Graphs to Find the Set (−∞,9)∪[−6,18)( - \infty , 9 ) \cup [ - 6,18 )(−∞,9)∪[−6,18)

Use Graphs to Find the Set $( - \infty , 9 ) \cup [ - 6,18 )$