
Shows how to ofirst find the coordinates of the vertex, then choose other inputs to find two more points on each side of the vertex, plott them and draw the graph.


Adding ratioinal expressions with quadratic denominators requires factoring each denominator so that the LCD can be determined. Then each fraction is exapanded by multiplying the tops and the…


A quick intro to how and why the product rule for exponents works.


A demonstration of how to deal with interpreting the union and intersection of two inequalities. For a more extensive and exhaustive demo, please view the videos entitled "Understanding…


This gives a graph of a parabola which is the graph of a quadratic equation or function. The demonstration first includes classifying it as a parabola that is opening downward or upward. Then it…


Demonstrates what happens when the F.O.I.L. method is applied to multiply two binomails of the form (a + b) (a  b). It's special circumstance that allows a short cut.


Demonstrates how to make t his graph per instructions, and also shows how to deal with a fractional leading coefficient.


How to graph these special parabolas


Explains where the distance formula originates, and then gives an example of its use in finding the distance between two points.


A second example of how to solve a formula for one of its variables.
