Finds domain and range of a quadratic function, a hyperbola, and the two composite functions. Shows how to exclude values from the domain and range.

This screencast compares the graph of a rational function four possible functions and discusses which rational function has produced the graph.

This recording shows that it is possible to multiply by an expression containing a variable in an inequality - as long as one keeps track of when the expression is positive or negative.

Part 1: Explains how to solve simple equalities/inequalities of the type abs(x)=constant, abs(x) < constant, abs(c) > constant.

Explains how to rewrite a cubic polynomial as the product of a linear term and a quadratic, by dividing the cubic by the linear term.

This recording first explains what a transition curves is and gives formulae to calculate the angle theta as well as any point on the curve (x,y). It then works through an example.

Shows two incorrect solutions to finding the derivative of (3x+5)^2x and discusses why they are incorrect. The correct approach is then explained.

Part 3: Shows how to solve absolute value inequalities, example abs(2x-1)<5

Shows how to convert from a binary number to its corresponding decimal number. Two examples are given.

Shows how to check if a polynomial is even or odd, and extends this to a rational function.