Question

The solution to an inequality is graphed on the number line.

A number line going from negative 5 to positive 5. A solid circle appears between positive 4 and positive 5. The number line is shaded from the circle to negative 5.
What is another way to represent this solution set?

{x | x < 4.5}
{x | x ≤ 4.5}
{x | x > 4.5}
{x | x ≥ 4.5}

Answer 1

{x | x ≤ 4.5}

Explanation: the solid circle at 4.5 includes that point, and the shading to the left indicates all numbers less than or equal to 4.5.