Aim: What are the multiplication and division postulates

1
Aim What are the multiplication and division
postulates?

• Do Now Example 4 Symmetric/Transitive Worksheet

2
The Multiplication Postulate

• Postulate 3.8 If a b and c d, then ac bd.
  If equals are multiplied by equals, the products
  are equal.
• Postulate 3.9 Doubles of equal quantities are
  equal.

3
The Division Postulate

• Postulate 3.10 If a b and c d, then
• Postulate 3.1.1 Halves of equal quantities are
  equal.

4
Powers Postulate

• Postulate 3.12 If a b, then a² b².

Roots Postulate

• Postulate 3.13 If a b and agt0 then
  .
• Postulate 3.13 Positive square roots of positive
  equal quantities are equal.