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The set of all y-values such that y is greater than -4: {y|y > -4}
The set of all y-values such that y is greater than or equal to -4: {y|y ≥ -4}
The set of all y-values such that y is less than -4: {y|y < -4}
The set of all y-values such that y is less than or equal to -4: {y|y ≤ -4}