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!

REVIEW: Algebra Review Quiz

1. Subtract

REVIEW: Solve the following equation for x.

2∗ ∗2Multiply

2. Subtract

4∗ ∗4Multiply

Distribute Subtract

Add

Divide

REVIEW: Solve the following equation for x.

REVIEW: Graph the equation

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.

REVIEW: Segment Addition

Postulate

Two parts makes a whole

Substitute given lengths

Subtract

Divide

REVIEW:

G

EF

3 𝑥+3

8 𝑥+2

6 0

PRACTICE:D

AB16𝑥

42

ALL parts makes a whole

Substitute given lengths Combine like terms

Subtract

Divide

Find

C𝑥

PRACTICE:G

EF

6𝑥

1.6 𝑥

Two parts makes a whole

Substitute given lengths Subtract

Divide

A BC

so

MIDPOINT: A point that cuts a segment into two equal pieces.

MIDPOINT EQUATION: Given two points

PRACTICE: M is the midpoint of AC. Find the value of AM if

𝐴 𝐶𝑀

42𝑖𝑛

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

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

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

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.

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)

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