68) The accompanying graph shows how the volume of lumber V in a tree varies with time t (the age of the tree). Use the graph to estimate the rate at which V is changing with respect to time when t = 20 years. What seems to be happening to the rate of change of V as t increases without bound (that is, in the long run)? Volume of lumber V (units) Time (years) Graph showing how the volume of lumber V in a tree varies with time t. A) 1.3; decreases to 0 B) 2.2; approaches 60 C) 1.3; approaches 60 D) 2.2; decreases to 0
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From the graph, we can see that the tangent line at 20 years has a slope of approximately 1.3. Show more…
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