Download presentation
Presentation is loading. Please wait.
1
Reasoning With Properties of Algebra
Chapter 2 Section 2.4 Reasoning With Properties of Algebra
2
Algebraic Properties of Equality
Let a, b,c be real numbers Addition property of equality If a = b, then a + c = b + c Subtraction property of equality If a = b, then a - c = b – c Multiplication property of equality If a = b, then ac = bc Division property of equality If a = b and c 0, then a c = b c
3
Algebraic Properties of Equality
Let a, b,c be real numbers Reflexive property of equality For any real number a, a = a Symmetric property of equality If a = b, then b = a Transitive property of equality If a = b and b = c, then a = c Substitution property of equality If a = b, then a can be substituted for b in any equation or expression
4
Use the property to complete the statement
1. Reflexive property of equality: mT = m T KL = RW 2. Transitive property: If KL = MN and _____ = RW, then _____ MN 17 + 5 3. Addition property of equality: If x = 5, then 17 + x = ______ 4. Symmetric property of equality: If BC = RL, then ______ RL = BC 5. Substitution property of equality: If mA = 45 and mB = mA + 90 then____ mB = = 135 Multiplication property of equality: If mA = 45, then (mA) = __15___
5
Complete the argument, giving a reason for each step
Distributive Property Addition Property of = Subtraction Property of =
6
Complete the argument, giving a reason for each step
Addition Property of = Addition Property of = Division Property of =
7
Complete the argument, giving a reason for each step
Segment Addition Postulate Substitution prop of = Substitution property of =
8
Complete the argument, giving a reason for each step
Given a. Reflexive prop of = b. Addition property of = c. Angle Addition postulate d. Angle Addition postulate e. Substitution property of =
9
Complete the argument, giving a reason for each step
Given a. Definition lines b. Definition lines c. Substitution property of =
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.