A. Plot the circles x2+y2=4 and x2+y2=1 on the same coordinate plane.

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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A. Plot the circles x2+y2=4 and x2+y2=1 on the same coordinate plane.

 

 

B. Find the image of any point on x2+y2=4 under the transformation (x,y)→(12x,12y).

       The point (2,0) will go to the ordered pair ( , )

 

C. What do you notice about x2+y2=4 and x2+y2=1 ?

         The small circle is a of the larger one using the origin as a center and a scale factor of

 

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