Commutative Law for Multiplication
The commutative law for multiplication: ab = ba.
Commutative and Associative Laws
Summary of the commutative and associative laws.
Commutative, Associative, and Distributive Laws, The
Why the commutative, associative, and distributive laws are important to algebraic operations.
Comparing Standard and Slope-intercept Form
Standard form and slope-intercept form equations give you different ways of looking at a problem.
Coordinate Plane
Graphs are created on an imaginary surface called a coordinate plane, which contains vertical and horizontal number lines. Using the numbers on the axes to plot points on the plane creates a picture of the solution.
Deciding Between Substitution and Elimination
How to decide whether substitution or elimination is the better method for solving a system of equations in which one equation has been solved for a variable.
Denominator of a Simplified Expression Never Has Radicals, The
A guideline is presented: a simplified radical expression never has radicals in the denominator. An expression with a radical in the denominator, but not in the numerator, is simplified using the identity property of mul..
Determining the Value of a Variable
Sometimes a variable can appear more than once in a single algebraic equation. These different variables are represented by different symbols.
Different Ways to Write the Same Inequality
Inequalities can be written in more than one way. X < 10, for example, is the same as 10 > X.
Distributive Law Defined
Summary of the distributive law.