(a)
To write: The equation of the cross section of the base.
(a)
Answer to Problem 53E
The equation of the cross section of the base is
Explanation of Solution
Given information:
The given figure is as follows.
Calculation:
Use the diagram to determine
Write the equation for the parabola with a horizontal transverse axis using any known information as shown below.
Substitute 2 for
Write the equation of the cross section of the base.
Therefore, the equation of the cross section of the base is
(b)
To find: The width of the base, 4 inches from the bottom.
(b)
Answer to Problem 53E
The width of the base is
Explanation of Solution
Given information:
It is given that, each unit in the coordinate plane represents
Calculation:
Consider the equation
Since each unit represents
Let,
Substitute
Since,
Therefore, the width of the base is
Chapter 9 Solutions
PRECALCULUS W/LIMITS:GRAPH.APPROACH(HS)
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