
Shows how to interpret and graph on a number line a set written in set builder notation, then goes on to transfer the line graph to interval notation.


A brief description of the difference between rational and irrational numbers followed by examples of number in both categories.


A brief description of what integers consist of followed by a list of numbers where it is decided whether each is an integer or not.


This shows how to enter a value into a function to get a result for something like depreciation of value over time for a purchased item.


This discusses what rationals and irratioinals are, then goes on to demonstrate how to eliminate any radical number in the denominator.


A quick look at distributin a radical across a sum of a whole number and a different radical


Two examples showing the addition or subtraction of like radicals


Application of the equation relating the three sides of a right triangle:: a^2 + b^2 = c^2 where a and b are the shorter sides that make the rigiht angle and c is the lenght of the longest side.


This video shows how to compute the percentage of a price increase. A price decrease is worked the same way and the percentage is taken of the first and higher price.


Explains the pitfalls that you need to know about to correctly do this problem. It is not as easy as it seems at first glance, so pay close attention to this video.


Just finding the amount of increase or decrease in these types of percent problems.


Finding the amount from taking a percentage off or adding a percentage on, then finding the new amount.


Using the proportion %/100 = Amount/Base to plug in what's given to find what is asked for.


Multiplying the decimal version of a percent by a number to find that percentage amount.


Shows how to get rid of fractions early by multiplying through an equation by the LCD of all of the fractions.


Evaluating a variable expression when you know specific number values for each varible.
