CK-12 Geometry Concepts

(Elliott) #1

http://www.ck12.org Chapter 7. Similarity


For questions 13-18, use quadrilateralABCDwithA( 1 , 5 ),B( 2 , 6 ),C( 3 , 3 )andD( 1 , 3 )and its transformationA′B′C′D′
withA′(− 3 , 1 ),B′( 0 , 4 ),C′( 3 ,− 5 )andD′(− 3 ,− 5 ).



  1. Plot the two quadrilaterals in the coordinate plane.

  2. Find the equation of


←→


CC′.



  1. Find the equation of


←→


DD′.



  1. Find the intersection of these two lines algebraically or graphically.

  2. What is the significance of this point?

  3. What is the scale factor of the dilation?

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