Horizontal and Vertical Lines Have No Slope
Plotting and spotting zero slope lines, both horizontal and vertical.
Horizontal and Vertical Lines in Slope-intercept Form
Writing horizontal and vertical line equations in slope-intercept form.
Identify for Multiplication
The identity for multiplication is one. It applies to all numbers and to algebraic variables and expressions.
Identifying Linear Equations
How to identify a linear equation.
Identifying the Slope and y-intercept in an Equation
How to identify and the y-intercept in an equation.
Identities for Addition and Multiplication
Two important laws for solving equations are the identities for addition and multiplication.
Identities for Addition and Multiplication Defined
An equation is a statement that two quantities are equal. Explanation of an identity equation and identifying a statement that is not an equation.
Identities for Addition and Multiplication Defined
The identity for addition is zero and the identity for multiplication is one.
Identity for Addition
The identity for addition is zero. It works for all numbers and for the variables used in algebra.
Introduction to Factoring Quadratic Trinomials
A quadratic trinomial is a polynomial with three terms. In two of the terms the same variable appears, one that is raised to the second power and the other with an exponent of one. The third term in a quadratic trinomial..