The figure shows the graph of the position x as a function of time for an object moving in the straight line (the x-axis) . Which of the following graphs best describes the velocity along the x-axis as a function of time for this object? 
Definitions:
Least Effective
Being the least capable of producing a desired result or preventing undesired outcomes.
Repetition For Reinforcement
The deliberate use of repeating elements in communication to strengthen memory retention or emphasize a point.
Job Specialization
The process of focusing one's occupational concentration on a specific area of expertise, increasing efficiency and proficiency.
Work Efficiency
The measure of the effectiveness with which tasks and goals are accomplished, often focusing on maximizing outputs with minimal wasted effort or resources.
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