Question: what is the range of the absolute value parent function?
Answer: The vertex of the graph is (h,k). The domain of the graph is set of all real numbers and the range is y≥k when a>0. The domain of the graph is set of all real numbers and the range is y≤k when a<0. The axis of symmetry is x=h. It opens up if a>0 and opens down if a<0.