Answer:
B. As the speed of the rockets increase, their kinetic energy increases.
Step-by-step explanation:
The line graph above slopes upward from left to your right. This implies that as the variable on the x-axis (speed) increases, the kinetic energy also increases in the same direction. Thus, kinetic energy increases with the speed of the rocket.
However, this is not a constant relationship as the line curves. A constant relationship would have a straight line graph.
Therefore the best statement that describes the relationship represented on the graph is:
"B. As the speed of the rockets increase, their kinetic energy increases."