Question

The solution to an inequality is represented by the number line.

A number line going from negative 5 to positive 5. An open circle appears at positive 3. The number line is shaded from positive 3 to positive 5.

How can this same solution be written using set-builder notation?

{x | x >
}

Answer 1

{x | x > 3}

The open circle at 3 means 3 is not included, and the shading to the right indicates all numbers greater than 3.