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Warm-up with 2.2 Finding the nth Term. 1. Points are ____________ if they lie on the same line. 2. A triangle with two congruent sides is __________ . 3. A polygon with 12 sides is called a(n)____________. 4. A trapezoid has exactly one pair of ___________ sides.
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Warm-upwith 2.2 Finding the nth Term 1. Points are ____________ if they lie on the same line. 2. A triangle with two congruent sides is __________ . 3. A polygon with 12 sides is called a(n)____________. 4. A trapezoid has exactly one pair of ___________ sides. 5. The geometry tool used to measure the size of an angle in degrees is called a(n) __________ . 6. A(n) ____________of a circle connects its center to a point on the circle. 7. A segment connecting any two non-adjacent vertices in a polygon is called a(n) ___________ . 8. A(n)________polygon is both equiangular and equilateral.
Review of 2.1 before 2.2 Lesson 2.1 pg 99, 100 # 2- 18 Problems 3 – 10, you have to come up with the next two terms in the sequence using inductive reasoning 3) 1, 10, 100, 1000, ______, ______ 5) 7, 3, -1, -5, -9, _____ , ______
2.2 Finding the nth Term Example 1: 20, 27, 34, 41, ____, ____ Rule: Example 2 with table Function notation : f(n) = n – 5 Substitute in n = 6 f(6) = n – 5
Coming up with the Function Rule 20, 27, 34, 41, ____, ____ Step 1: n = 1 and we see it goes up by 7 Step 2: 7(1) = 20? Step 3: Write what is missing into the rule 7 n + ? = 20
Determine if the following are linear.If they are linear, write the function rule.
H.W. Assignments • 2.1 pg 99 # 2-18 • 2.2 pg pg 105 and 106 # 1 – 6 all problems copy all the tables. #2 of pg 99 Sean draws these geometric figures on paper. His sister Courtney measures each angle with a protractor. They add the measures of each pair of angles to form a conjecture.Write their conjecture