The distance, y, in centimeters, of an ant from a hole in the tree for a certain amount of time, x, in seconds, is shown in the graph: A graph titled Motion of Ant is shown. The graph shows time in seconds on the x-axis and the Distance from Hole in centimeters on the y-axis. The scale on the x-axis is shown from 0 to 6 at increments of 1, and the scale on the y-axis is shown from 0 to 18 at increments of 3. The graph has 3 straight lines. The first line is labeled K and joins ordered pairs 0, 0 and 2, 9. The second line is labeled L and joins ordered pairs 2, 9 and 5, 9. The third line is labeled M and joins ordered pairs 5, 9 and 7, 0. Part A: Is the graph linear or nonlinear? Explain your answer. (2 points) Part B: In which segments is the graph increasing, decreasing, and constant? (3 points) Part C: In your own words, describe the motion of the ant, as shown on the graph. (5 points)