Interval Notation and Inequalities

Front

Can you use the symbols [ or ] with infinity?

Back

No

Front

Write the following solution in interval notation: z < 20

Back

( -∞ , 20 )

Front

Write the following solution in interval notation: x ≥ 6

Back

[ 6, ∞ )

Front

When writing a solution in interval notation, what do I use for > or < ?

Back

( )

Front

Why do I draw a closed circle when it's less than or equal to or greater than or equal to?

Back

Because we are INCLUDING that solution.

Front

What does the interval notation (a, b) represent?

Back

All numbers between a and b, not including a and b.

Front

What does the interval notation [a, b] represent?

Back

All numbers between a and b, including a and b.

Front

What does the interval notation (a, b] represent?

Back

All numbers between a and b, including b but not a.

Front

What does the interval notation [a, b) represent?

Back

All numbers between a and b, including a but not b.

Front

How is the interval notation for x > 3 written?

Back

( 3, ∞ )