# The figure shows six containers, each of which is filled from the top. Assume that water is poured into the

## Question:

The figure shows six containers, each of which is filled from the top. Assume that water is poured into the containers at a constant rate and each container is filled in 10 seconds. Assume also that the horizontal cross sections of the containers are always circles. Let h(t) be the depth of water in the container at time t, for 0 ≤ t ≤ 10.

a. For each container, sketch a graph of the function y = h(t), for 0 ≤ t ≤ 10.

b. Explain why h is an increasing function.

c. Describe the concavity of the function. Identify inflection points when they occur.

d. For each container, where does h' (the derivative of h) have an absolute maximum on [0, 10]?

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**Related Book For**

## Calculus Early Transcendentals

**ISBN:** 978-0321947345

2nd edition

**Authors:** William L. Briggs, Lyle Cochran, Bernard Gillett

**Question Details**

**4**- Applications of the Derivative 236

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