Use graphs to find the set.
-$( 9 , \infty ) \cup [ 17 , \infty )$
A) $( 9,17 ]$
B) $( 9 , \infty )$
C) $( - \infty , \infty )$
D) $[ 17 , \infty )$

Question

Quizplus · Accepted Answer

The set $( 9 , \infty ) \cup [ 17 , \infty )$ includes all numbers greater than 9 and all numbers greater than or equal to 17. Since any number greater than or equal to 17 is also greater than 9, the union of these two sets is simply all numbers greater than 9, which is $( 9 , \infty )$.

Use Graphs to Find the Set (9,∞)∪[17,∞)( 9 , \infty ) \cup [ 17 , \infty )(9,∞)∪[17,∞)

Use Graphs to Find the Set $( 9 , \infty ) \cup [ 17 , \infty )$