Pre-Algebra Chapter 1 Vocabulary

The point at which the two number lines intersect on the coordinate plane.

a+(b+c)= (a+b)+c is an example of which property?

a+b+c = a+c+b is an example of the _______________Property.

The branch of mathematics dealing with symbols.

The set of all x values of a relation

An expression that contains at least one variable, numbers and operations is called a(n) ___.

The set of all y values for a relation

Statements that are true for any numbers are _______________

This is a placeholder for any value.

An expression that contains numbers and operations is called a ______________ expression.

The rules we use when we need to work a problem with more than one operation.

When we find the numerical value of an expression, we are _______________ the expression.

To _______ an algebraic expression means to write it in simpler form.

A mathematical sentence that contains an equal sign

An educated guess is called a

An equation that contains a variable

An example that shows a conjecture is not true is a ______________.

A set of ordered pairs