Answer:
Step-by-step explanation:
Four
I can't think of a sport in which athletes don't make these motions. For example a batter in baseball definitely makes a rotation. The bat makes a full arc around the axis of the batter's body.
Every time a fielder changes position to catch a ball, he is changing his position.
A reflection is the hardest one. When a base runner is caught trying to steel a base the ball is thrown back and forth between (say) 2 infielders. The runner is in the middle so the second base man and the third baseman are the reflected points using the runner as the point of reference. Interesting question.
Three
Travelling straight is a linear change in position. Usually only x or y but not both are changing.
Travelling around a corner changes direction and is quite different. The coordinate system changes x and y constantly and not at the same rate. This is another good question. Try to visualize what I've answered.
