Question

1. The graph shown represents the altitude of a hikerduring a period of time. Write a possible situationrepresented by the graph.Altitude (feet)Time (hours)2. Use the vertical line test to determine if the relation represented on the graph

Answer 1

The vertical line test consists in tracing various vertical lines throughout the function and checking wheter this lines will touch the function more than once.

As we can see none of the lines touch the graph more than once, therefore this graph is a function.