1.

Madeline is asked to analyze the true statements shown. If two lines meet at a 90 angle, they are perpendicular. If two lines are perpendicular, they have opposite reciprocal slopes.A. Based on the law of syllogism, if two lines meet at a 90 angle, then they have opposite reciprocal slopes.B. Based on the law of syllogism, if two lines have opposite reciprocal slopes, then they meet at a 90 angle.C. Based on inductive reasoning, if two lines meet at a 90 angle, then they have opposite reciprocal slopes.D. Based on inductive reasoning, if two lines have opposite reciprocal slopes, then they meet at a 90 angle.​

Answer»

ANSWER: A. Based on the law of syllogism, if two LINES MEET at a 90 angle, then they have opposite reciprocal slopes.

Step-by-step explanation:

  • Law of Syllogism which is also known as reasoning by transitivity is a VALID argument method of a deductive reasoning that follows a sequence.

  • Its similar to the transitive property of equality, which states that if a=b and b=c then a=c

The given statement :  If two lines meet at a 90 angle, they are perpendicular. If two lines are perpendicular, they have opposite reciprocal slopes.

  • let a →" two lines meet at a 90 angle"

  • b→ "two lines are perpendicular are perpendicular"

  • c→" two lines have opposite reciprocal slopes"

  • Since a→b and b→c

Therefore by law of syllogism, a→c

Therefore by law of syllogism, a→ci.e. If two lines meet at a 90 angle, then they have opposite reciprocal slopes.



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