CPM Homework Help : APCALC Problem 4-36

Using the distance vs. time graph at right, determine if the velocity is positive, negative, or zero at each labeled point on the graph.

Hint:

Since the slope at a point is the same as the slope of the tangent line at that point, draw small tangent lines. Use their slopes to answer these questions.

First quadrant, continuous curve coming from upper left, passing through highlighted point labeled, a, turning up at highlighted point labeled b, changing from concave up to concave down at highlighted point c, turning down at highlighted point d, passing through highlighted point e, stopping at the x axis.