
Starts with cautiioning against multiplying the factors back together and describes the zero product property to justify this warning. Then shows how to continue from the factored form to separate…


Another demo on how to use the yintercept to start a graph of a linear equation and then use the slope to find other points on the graph. It finishes with showing the line representing all of the…


This describes how to solve each side of a compound inequality, then using the graphs of each part determine the interval notation for the entire compound statement.


Gives the three possible answers that result from calculating a discriminant, then demonstratew with two different quadratic equations.


Just an exercise in testing whether an ordered pair makes an inequality statement true when plugged in for the variables.


Looks at the three types of graphs that can occur with a system of two linear equaltions in two variables.


This demonstrates testing possible answers to a system of two equations to see whether they are truly answers or not. Note that each answer has to work for both equations, but if it doesn't…


Demonstrating how to substitute several values for the variable in an inequality to see if they are valid solutions.


Shows how to substitute values for the variable in a simple equation and determine what values, if any, make it equal.


This shows the first method for factoring a trinomial where a is not = 1
