I am not sure which symbol you meant to include so will do all four of them:
y > -5 --------> (-5, ∞)
y ≥ -5 --------> [-5, ∞)
y < -5 --------> (-∞, -5)
y ≤ -5 --------> (-∞, -5]
The PARENTHESIS is used when the number is NOT included (open dot).
The BRACKET is used when the number IS included (closed dot).