42. The graph shows the distance an object traveled in 11 seconds. Distance Versus Time
10
9
8
Distance (m)
3
2
1
0 1 2 3 4 5 6 7 8 9 10
Time (s)
which answer choice best describes the movement of the object between the times of O and 6
seconds on the graph?

In an experiment examining the effects tai chi on arthritis pain, callahan (2010) selected a large sample of individuals with doctor-diagnosed arthritis. half of the participants immediately began a tai chi course and the other half (the control group) waited 8 weeks before beginning. at the end of 8 weeks, the individuals who had experienced tai chi had less arthritis pain that those who had not participated in the course.