today in geometry… algebra review quiz today! review segment addition postulate and congruency ...
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TODAY IN GEOMETRY… Algebra Review Quiz today!
Review Segment Addition Postulate and Congruency
Learning Goal: 1.3 You will find lengths of segments in the coordinate plane
Independent Practice – NO A.T.
1.1-1.3 QUIZ – Friday!
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REVIEW: Algebra Review Quiz
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1. Subtract
REVIEW: Solve the following equation for x.
2∗ ∗2Multiply
2. Subtract
4∗ ∗4Multiply
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Distribute Subtract
Add
Divide
REVIEW: Solve the following equation for x.
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REVIEW: Graph the equation
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ALGEBRA REVIEW QUIZ You have 20 minutes to complete your quiz Are you prepared? Pencil? Calculator? No notes allowed If you finish early:
Finish any missing assignments. Work on something quietly as the rest of
your fellow classmates complete their quizzes.
NO TALKING. STAY IN YOUR SEATS.
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REVIEW: Segment Addition
Postulate
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Two parts makes a whole
Substitute given lengths
Subtract
Divide
REVIEW:
G
EF
3 𝑥+3
8 𝑥+2
6 0
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PRACTICE:D
AB16𝑥
42
ALL parts makes a whole
Substitute given lengths Combine like terms
Subtract
Divide
Find
C𝑥
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PRACTICE:G
EF
6𝑥
1.6 𝑥
Two parts makes a whole
Substitute given lengths Subtract
Divide
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A BC
so
MIDPOINT: A point that cuts a segment into two equal pieces.
MIDPOINT EQUATION: Given two points
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PRACTICE: M is the midpoint of AC. Find the value of AM if
𝐴 𝐶𝑀
42𝑖𝑛
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PRACTICE: M is the midpoint of VW. Find the value of x.
𝑉 𝑊𝑀4 𝑥−1
M is the midpoint so Congruent segmentsequal lengths
Substitute known values Subtract
Add
3 𝑥+3
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𝐺 (6 ,3 ) ,𝑀 (8 ,−1)
MG H(6 ,3) (8 ,−1)
+2
-4
(,)
+2
-4
𝐻 (10 ,−5)
PRACTICE: M is the midpoint of GH. Find the missing endpoint.
8+2−1−4
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𝐵 (−2 ,5 ) ,𝐶 (6 ,1)
BA C(6 ,1)(−2 ,5)(,)
𝐴(−10 ,9)
PRACTICE: B is the midpoint of AC. Find the missing endpoint.
−2−85+4
-8-8
+4+4
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𝐴 (8 ,7 ) ,𝐵(13 ,−2)𝑥1 𝑦1 𝑥2 𝑦2
Midpoint Formula Substitute known values
Simplify
Point is the midpoint for segment AB.
PRACTICE: Find the midpoint of segment AB using the midpoint formula.
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𝐶 (−12 ,6 ) ,𝐷(8 ,−4 )𝑥1 𝑦1 𝑥2 𝑦2
Midpoint Formula Substitute known values
Simplify
Point is the midpoint for segment CD.
PRACTICE: Find the midpoint of segment CD using the midpoint formula.
¿ (−2,1)
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HOMEWORK #3:
Pg. 19: 5-19, 25-27
REMINDER: turn in your Student Acknowledgment and Agreement Form!
If finished, work on other assignments:
HW #1: Pg. 5: 1, 5, 8-11, 13, 15, 17-21, 27-30, 46HW #2: Pg. 12: 6-16, 21-28, 33, 35