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Math_112_Fall_2010.jkovalsky.Lesson_07_-_Three_Interesting_Curves

# Math_112_Fall_2010.jkovalsky.Lesson_07_-_Three_Interesting_Curves

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JORDAN KOVALSKY Math - 112 Spring 2010 WeBWorK Assignment Lesson 07 - Three Interesting Curves Due Date: 09/22/2010 at 11:59pm CDT. The primary purpose of WeBWorK is to let you know that you are getting the correct answer or to alert you if you are making some kind of mistake. You can use the Feedback button on each problem page to send e-mail to the course instructors. 1. (1 pt) Specify the center and radius of the circle ( x 5 ) 2 +( y 8 ) 2 = 196. Center = ( , ) Radius = Does the point ( 12 , 1 ) lie on the circle? ? Correct Answers: 5 8 14 No 2. (1 pt) Specify the center and radius of the circle ( x + 2 ) 2 +( y + 5 ) 2 = 26. Center = ( , ) Radius = Does the point ( 1 , 1 ) lie on the circle? ? Correct Answers: -2 -5 sqrt(26) No 3. (1 pt) Determine the center and the radius for the following circle. Also, find the y coordinate(s) of the points (if any) where the circle intersects the y axis. x 2 + y 2 10 x + 2 y + 17 = 0 Center = ( , ) Radius = If there is more than one y coordinate where the circle inter- sects the y axis, separate them with commas. If there are no y intercepts, enter ”NONE”.

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Math_112_Fall_2010.jkovalsky.Lesson_07_-_Three_Interesting_Curves

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