The user provided an image containing mathematical expressions and number lines. Please analyze and represent this data in JSON format.

Mathematical Expressions and Number Lines:

• Inequality: x ≤ -3
• Number Line Representation: A number line showing the interval less than or equal to -3, with a closed circle at -3 and shading to the left.
• Labeled Points on a Number Line: -2 and 4 are marked on a number line.
• Interval Notation: [-4, 5]; [-3, 6]
• Interval Notation: (- ∞, 5); (1, ∞)