Inequalities, Set Builder Notation, and Interval Notation

Front

What does the inequality x > 16 represent?

Back

x is greater than 16.

Front

What does the inequality x < -3 represent?

Back

x is less than -3.

Front

Is -25 a solution to the inequality x > 15?

Back

No, it is not a solution.

Front

Why do we draw a closed circle on a number line for ≤ or ≥?

Back

Because we are INCLUDING that solution.

Front

How do you write y > 10 in set builder notation?

Back

{ y | y > 10 }

Front

What does the inequality x ≤ 5 mean?

Back

x is less than or equal to 5.

Front

What does the interval notation (3, 7) represent?

Back

All numbers greater than 3 and less than 7, not including 3 and 7.

Front

How do you express the solution x ≥ 2 in interval notation?

Back

[2, ∞)