The commutative law for multiplication: ab = ba.
Summary of the commutative and associative laws.
Why the commutative, associative, and distributive laws are important to algebraic operations.
Standard form and slope-intercept form equations give you different ways of looking at a problem.
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.
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.
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..
Sometimes a variable can appear more than once in a single algebraic equation. These different variables are represented by different symbols.
Inequalities can be written in more than one way. X < 10, for example, is the same as 10 > X.
Summary of the distributive law.