Parabola vertex and axis of symmetry
Introduction to partial fraction expansion
A more complex problem
Dealing with repeated factors
This video is from the Khan Academy subject of Math on the topic of Algebra and it covers Percent word problems 1 example 2).
Learn about graphing polynomials. The shape of the curve changes as the constants are adjusted. View the curves for the individual terms (e.g. y=bx ) to see how they add to generate the polynomial curve.
Explore size estimation in one, two and three dimensions! Multiple levels of difficulty allow for progressive skill improvement.
See how the equation form of Ohm's law relates to a simple circuit. Adjust the voltage and resistance, and see the current change according to Ohm's law. The sizes of the symbols in the equation change to match the circuit diagram.
Plot ordered pairs
This video is from the Khan Academy subject of Math on the topic of Algebra and it covers Plotting complex numbers on the complex plane.
Distance between a point and a plane in three dimensions
Point-slope and standard form
This video is from the Khan Academy subject of Math on the topic of Algebra and it covers Points on the coordinate plane.
Polynomial Division
Polynomial divided by monomial
Polynomials1
Polynomials 2
Going through a few examples on the Khan Academy practice exercise: http://www.khanacademy.org/math/algebra/systems-of-eq-and-ineq/e/solutions_to_systems_of_equations
Example doing Khan Academy systems of equations exercise at: http://www.khanacademy.org/math/algebra/systems-of-eq-and-ineq/e/systems_of_equations_with_substitution
Prealgebra is designed to meet scope and sequence requirements for a one-semester prealgebra course. The book’s organization makes it easy to adapt to a variety of course syllabi. The text introduces the fundamental concepts of algebra while addressing the needs of students with diverse backgrounds and learning styles. Each topic builds upon previously developed material to demonstrate the cohesiveness and structure of mathematics.