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Type: Multiple-Choice
Category: Symmetry and Transformations
Level: Grade 9
Standards: HSG-SRT.A.1, HSG-SRT.A.1a
Author: nsharp1
Created: a month ago

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Symmetry and Transformations Question

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Grade 9 Symmetry and Transformations CCSS: HSG-SRT.A.1, HSG-SRT.A.1a

Line [math]l[/math], with equation [math]y = 3x - 1[/math], is dilated by a factor of 3, with the center of dilation being the origin. Which of the following is the equation of the dilated line?
  1. [math]y = 9x - 3[/math]
  2. [math]y = 3x - 9[/math]
  3. [math]y = 3x - 3[/math]
  4. [math]y = x - 1/3[/math]
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