Presentation on theme: "Sec 2-1 Concept: Use Inductive Reasoning Objectives: Given a pattern, describe it through inductive reasoning."— Presentation transcript:
Sec 2-1 Concept: Use Inductive Reasoning Objectives: Given a pattern, describe it through inductive reasoning
Example 3: Find the next number in the pattern 1. 17,15,12,8,…..____= ,7.5,8, 8.5,….____ = 9
3 Stages of Inductive Reasoning in Geometry 1. Look for a pattern 2. Make a conjecture Ø A Conjecture is an unproven statement that is based on observations. 3. Verify the conjecture
Example 4: Sketch the next figure in the pattern 1. 2.
Example 5: Complete the conjecture based on the pattern you observe 1. The sum of any two odd numbers is ____ EVEN Try some examples to see a pattern:
Example 6: Write a function rule relating x and y.
Example 7: Show the conjecture is false by finding a counterexample A counterexample is an example that shows a conjecture is false. 1. If the product of two numbers is positive, then the two numbers must both be positive False: a negative number multiplied by another negative number is a positive number