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Math 9 - Chapter 2: Reasoning and Proof

Quiz by Sylvain Normandeau

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20 questions
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  • Q1
    An unproven statement that is based on observations.
    conjecture
    30s
  • Q2
    Finding a pattern in specific cases and writing a conjecture for the general case.
    inductive reasoning
    30s
  • Q3
    A specific case for which a conjecture is false.
    counterexample
    30s
  • Q4
    A logical statement that has two parts, a hypothesis and a conclusion.
    conditional statement
    30s
  • Q5
    A statement written by exchanging the hypothesis and conclusion of a conditional statement
    converse
    30s
  • Q6
    A statement written by negating both the hypothesis and conclusion.
    inverse
    30s
  • Q7
    A statement written by taking the converse and negating both the hypothesis and conclusion.
    contrapositive
    30s
  • Q8
    A conditional statement, where the "if" part contains the hypothesis and the "then part contains the conclusion.
    if-then form
    30s
  • Q9
    A testable prediction, often implied by a theory.
    hypothesis
    30s
  • Q10
    A summary based on evidence or facts.
    conclusion
    30s
  • Q11
    The opposite of the original statement
    negation
    30s
  • Q12
    Two statements that are both true or both false
    equivalent statements
    30s
  • Q13
    Two lines that intersect to form a right angle
    perpendicular lines
    30s
  • Q14
    See image
    Two lines that intersect to form a right angle.
    30s
  • Q15
    A statement where the conditional statement and its converse are both true.
    biconditional statement
    30s

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