Interval Notation and Inequalities

Front

What does a closed circle represent when graphing inequalities?

Back

It represents that the solution is INCLUDED in the set.

Front

What does an open circle represent when graphing inequalities?

Back

It represents that the solution is NOT INCLUDED in the set.

Front

How is the interval notation for 'z < 20' written?

Back

(-∞, 20)

Front

What type of circle is drawn for '≤' or '≥' in graphing?

Back

Closed Circle

Front

What type of circle is drawn for '<' or '>' in graphing?

Back

Open Circle

Front

Which of the following is NOT part of the solution set for the inequality x > 0: (0, 0), (5, 1), (-1, -3), (20, -5)?

Back

(-1, -3)

Front

What is the interval notation for 'x ≥ 3 and x < 7'?

Back

[3, 7)

Front

How do you express the solution set for 'x ≤ 5' in interval notation?

Back

(-∞, 5]

Front

What is the solution to the inequality 'x + 2 < 5'?

Back

x < 3

Front

What does the symbol '∞' represent in interval notation?

Back

It represents an unbounded limit, extending indefinitely.