Download presentation

Presentation is loading. Please wait.

Published byAndrew Miller Modified over 4 years ago

1
1 2-4 Reasoning in Algebra Objectives: Use basic properties of algebra in reasoning Define congruence State the properties of congruence

2
2 Properties of Equality Addition Property If a = b, then a + c = b + c Subtraction Property If a = b, then a – c = b – c Multiplication Property If a = b, then a * c = b * c Division Property If a = b and c 0, then a/c = b/c Reflexive Property a = a Symmetric Property If a = b, then b = a Transitive Property If a = b and b = c, then a = c Substitution Property If a = b, then b can replace a in any expression Distributive Propertya(b + c) = ab + ac

3
3 Solve and Write a Justification for Each Step 2 (x + 1) = 8 Given 2x + 2 = 8 Distributive Property 2x = 6 Subtraction Property of = x = 3 Division Property of =

4
4 Congruence in Geometry Congruence – Having the same shape and size Symbol for congruence AB CD (Segment AB is congruent to segment CD.) ABCD A B (Angle A is congruent to angle B.) AB

5
5 Properties of Congruence Reflexive Property AB AB A A Symmetric Property If AB CD, then CD AB If A B, then B A Transitive Property If AB CD and CD EF, then AB EF If A B and B C,then A C

Similar presentations

OK

Holt Geometry 2-5 Algebraic Proof 2-5 Algebraic Proof Holt Geometry Warm Up Warm Up Lesson Presentation Lesson Presentation Lesson Quiz Lesson Quiz.

Holt Geometry 2-5 Algebraic Proof 2-5 Algebraic Proof Holt Geometry Warm Up Warm Up Lesson Presentation Lesson Presentation Lesson Quiz Lesson Quiz.

© 2018 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on front office management Ppt on development of indian railways Ppt on zener diode polarity Ppt on electricity crisis in india Ppt on computer malware scanner Ppt on magnetic field due to current in a solenoid Respiratory system anatomy and physiology ppt on cells Ppt on field study 2 Ppt on game theory A ppt on bill gates