Geometry Warm up #3. 2-5 ALGEBRA PROOFS Properties of Equality—(Don’t write, they’re on your PAPER!)

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Presentation transcript:

Geometry Warm up #3

2-5 ALGEBRA PROOFS

Properties of Equality—(Don’t write, they’re on your PAPER!)

These are the same properties but with Congruence signs instead of equals.

Distributive Property—Add to Notes!

Problem 1

Problem 2 What is the value of x? Justify each step.

Try with a Partner

Proofs Don’t need to write just READ!

Proof #1 (Copy the T-chart on your paper!!) STEP 1. 3x = 7 – 1/2x 2. 6x = 14 – x 3. 7x = x = 2 REASON 1. GIVEN 2. Multiplication Property 3. Addition Property 4. Division Property It will give you the 1 st step First reason is always “given”

TOO: 3 Steps Step 1. 2x + 3 = x = 8 3. x = 4 Reason 1. Given 2. Subtraction Property 3. Division Property

Homework 2-5 Worksheet Have a great weekend! Modeling Monday!!!!!