What are equivalent expressions

The video tutorial explains equivalent expressions, which are expressions that have the same value. It introduces the concept using the equal sign and provides examples like 7 = 7 and 3 * 4 = 4 * 3, illustrating the commutative property. The tutorial also covers properties such as a + 0 = a, emphasizing that expressions can be equivalent even if they look different. Finally, it discusses equations, using examples to show how both sides of an equation can be equal, such as A = 9.

What does it mean for two expressions to be equivalent?

• They have different values.

• They are always numeric.

• They look exactly the same.

• They have the same value.

Which property is used to show that 3 * 4 is equivalent to 4 * 3?

• Associative Property

• Distributive Property

• Identity Property

• Commutative Property

Why is a + 0 considered equivalent to a?

• Because they have the same value.

• Because 0 is a special number.

• Because a is always zero.

• Because they look the same.

If A equals 9, what can we say about the expression A?

• A is not a number.

• A is equivalent to 9.

• A is greater than 9.

• A is less than 9.

What is demonstrated by the expression A = 9?

• A is a variable.

• A is always 0.

• A is not equal to 9.

• A is equivalent to 9.