find the range of 1-lx-3l Share with your friends Share 0 Brijendra P. answered this As we know that -∞≤x≤∞so -∞≤x-3≤∞or 0≤x-3≤∞ -∞≤-x-3≤0or -∞≤1-x-3≤0+1-∞≤1-x-3≤1So range is (-∞, 1] 1 View Full Answer