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Line up three rules that run parallel

Exercise and reference answers

Grid
    1. Group
      Rate 2
      Item
      2x+1
    2. Group
      Rate 3
      Item
      3x+7
    3. Group
      Rate 2
      Item
      2x-4
    1. Group
      Rate 5
      Item
      5x+1
    2. Group
      Rate 2
      Item
      2x+9
    3. Group
      Rate 3
      Item
      3x-2
    1. Group
      Rate 3
      Item
      3x
    2. Group
      Rate 5
      Item
      5x
    3. Group
      Rate 5
      Item
      5x-6
Groups
  1. Item
    Rate 2
  2. Item
    Rate 3
  3. Item
    Rate 5
Instructions
Swap two neighbouring tiles to line up three rules that share the same rate of change.

Explanation

_Source: OpenStax College Algebra (CC BY 4.0), Ch 4 "Linear Functions", section 4.1 Linear Functions_
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