Examples For Section 2.8

Problem Number 7

Find the distance between the points ( -2 , -6 ) and ( 3 , -4 ).

Problem Number 21

Find the midpoint of the line segment whose endpoints are the points ( -2 , -8 ) and ( -6 , -2 ).

Problem Number 33

Write the standard form of the equation of the circle with center ( 3 , 2 ) and radius r = 5.

Problem Number 43

Give the center and radius of the circle described by the given equation and graph it.  Use the graph to identify the relation's domain and range.

Problem Number 54

Give the center and radius of the circle described by the given equation and graph it.  Use the graph to identify the relation's domain and range.

Similar To Problem Number 68

A circular Ferris wheel has a radius of 20 feet.  The center of the Ferris wheel is 26 feet above the ground.  There is one hanging seat hooked up and this seat always hangs straight down 4 feet from a point on the circumference of the Ferris wheel.  How close to the ground does the bottom of the seat get?  If an xy-coordinate system is introduced with the x-axis running along the ground, the y-axis running through the center of the Ferris wheel, and the circle part of the Ferris wheel is in the plane of this xy-coordinate system, what would be the equation of the circle part of the Ferris wheel?  Click here to see an animation of the Ferris wheel.

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        Lane Vosbury, Math Chair, Seminole Community College   email:  vosburyl@scc-fl.edu

        This page was last updated on 10/08/08          Copyright 2002          webstats