Use the relationship graphed at right to answer the questions below.

1. Is the relationship a function?

   Hint (a):

   Does there appear to be more than one y-value for each value of $x$?

   Answer (a):

   Yes, it is a function.

2. What is the domain?

   Hint (b):

   Look at the $x$-intercepts on the graph.

   Answer (b):

   $−6\le x\le6$

3. What is the range?

   Hint (c):

   Look at the lowest and highest points on the graph.

   Answer (c):

   $−4\le y\le4$