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Aim: What are dialations? MB43 2/26/09 Lomas Do Now: Rotate   ABC by R 90 A translation maps the (0,-3) to (5,-1). What is the image of (0,7) under the same  translation? 1) 2) HW Review: 18,24 3) Solve for x:  4 = 3 x A B C HW: Read 575-8 Do 579  #2-10even, 16,  19, 25-29
Write a description of what you think a dialation is (full sentence) Aim: What are dialations? MB43 2/26/09 Lomas HW: Read 575-8 Do 579  #2-10even, 16,  19, 25-29
Function Rule for Dialations: P(x,y) P'(kx,ky) D k Aim: What are dialations? MB43 2/26/09 Lomas HW: Read 575-8 Do 579  #2-10even, 16,  19, 25-29
Dialate the triangle with vertices:  (-3,2),(3,4), & (-3,-5) by 2  The point defined by (3,-5)  is dialated by D -3 Find the constant of dialation that  maps (3,-1) to (-15,5) Find D 遜 (6,-8) Dialate (-4,2) & (-2,4) by D -3 1) 2) 3) 4) 5) 6) Dialate (-4,0) by -6 7) Use the rule (x,y)  (3x,3y) to find the image of (-3,2) 8) Aim: What are dialations? MB43 2/26/09 Lomas Find the constant of dialation that  maps (9,0) to (6,0) HW: Read 575-8 Do 579  #2-10even, 16,  19, 25-29
Aim: What are translations? MB43 2/24/09 Lomas HW: Read 560-572 Do 572-5  #21-25, 29-37odd
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Dialations

  • 1. Aim: What are dialations? MB43 2/26/09 Lomas Do Now: Rotate ABC by R 90 A translation maps the (0,-3) to (5,-1). What is the image of (0,7) under the same translation? 1) 2) HW Review: 18,24 3) Solve for x: 4 = 3 x A B C HW: Read 575-8 Do 579 #2-10even, 16, 19, 25-29
  • 2. Write a description of what you think a dialation is (full sentence) Aim: What are dialations? MB43 2/26/09 Lomas HW: Read 575-8 Do 579 #2-10even, 16, 19, 25-29
  • 3. Function Rule for Dialations: P(x,y) P'(kx,ky) D k Aim: What are dialations? MB43 2/26/09 Lomas HW: Read 575-8 Do 579 #2-10even, 16, 19, 25-29
  • 4. Dialate the triangle with vertices: (-3,2),(3,4), & (-3,-5) by 2 The point defined by (3,-5) is dialated by D -3 Find the constant of dialation that maps (3,-1) to (-15,5) Find D 遜 (6,-8) Dialate (-4,2) & (-2,4) by D -3 1) 2) 3) 4) 5) 6) Dialate (-4,0) by -6 7) Use the rule (x,y) (3x,3y) to find the image of (-3,2) 8) Aim: What are dialations? MB43 2/26/09 Lomas Find the constant of dialation that maps (9,0) to (6,0) HW: Read 575-8 Do 579 #2-10even, 16, 19, 25-29
  • 5. Aim: What are translations? MB43 2/24/09 Lomas HW: Read 560-572 Do 572-5 #21-25, 29-37odd