Which graph is the graph of function h?

h(x)={x, x< −1
−x, x≥−1

The appalachian trail is a hiking trail that passes through the appalachian mountains. three members of a teen hiking group hiked a section of the trail. the hikers stopped at a rest area and equally shared 3 4 gallon of water. how much water did each person get?

When only separate discreet points are graphed it is called?

Need on this one asap im almost done with this subject