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Knock out the false claims on 0 = 0

Exercise and reference answers

Questions
  1. Question
    Solving a two-rule system ends at 0 = 0. Three of these claims about that ending are false.
    Choices
    1. Item
      Every point on the line is a solution
      Correct
      Yes
    2. Explanation
      One solution needs two lines crossing at a single point, not one line twice.
      Item
      The system has exactly one solution
    3. Explanation
      Lines that never meet give a false statement instead, such as 9 = 13.
      Item
      The two lines never meet at all
    4. Explanation
      An ending like this is a real result and marks the system as dependent.
      Item
      A mistake must have been made
Instructions
Tap the three false claims about a system that ends at 0 equals 0 to clear them.

Explanation

_Source: OpenStax College Algebra (CC BY 4.0), Ch 7 "Systems of Equations and Inequalities", section 7.1 Systems of Linear Equations: Two Variables_
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