Congress has often used the Commerce Clause to justify exercising legislative power over the activities of states and their citizens, leading to significant and ongoing controversy regarding the balance of power between the federal government and the states.
Instantaneous and Average Velocity. instantaneous velocity of an object at a particular time is equal to the slope of its position vs. time graph at that time. On the other hand, the average velocity between two times is equal to the slope of the line joining the two points on the position vs. time graph.
4,515 5 25 57. You want to estimate the instantaneous velocity at $t=3$. It would be best to use the points with $t=2$ and $t=4$. The approximation for the instantaneous velocity is just the slope of the line segment connecting the two points (no need to find the equation of the tangent line). Note that slope is just the average velocity of $s$ over $[2,4]$.