Examples of variables varying directly and inversely
Recognizing Linear Functions
This video is from the Khan Academy subject of Math on the topic of Algebra and it covers Reflecting points exercise.
Relating invertibility to being onto (surjective) and one-to-one (injective)
Relations and Functions
This video is from the Khan Academy subject of Math on the topic of Algebra and it covers Representing and comparing rates.
Why we can represent the unknown mass problem as a simple equation
The basics of the logarithmic Richter and Moment Magnitude Scales to measure earthquakes
Construction a rotation transformation in R3
Laws of Exponents
Product and Quotient Rules
The Power rule for Exponents
Negative and Zero Exponents
Simplify Expressions using the Exponent Rules
This video is from the Khan Academy subject of Math on the topic of Algebra and it covers Scalar multiplication.
This video is from the Khan Academy subject of Math on the topic of Algebra and it covers Shifting and scaling parabolas.
Showing that linear independence of pivot columns implies linear independence of the corresponding columns in the original equation
Showing that just the columns of A associated with the pivot columns of rref(A) do indeed span C(A).
This video is from the Khan Academy subject of Math on the topic of Algebra and it covers Similar triangles to prove that the slope is constant for a line.
2010 IIT JEE Paper 1 Problem 56 Differential Equation
Practice solving systems of equations through simple elimination (exercise at http://www.khanacademy.org/math/algebra/systems-of-eq-and-ineq/e/systems_of_equations_with_elimination_0.5 )
Introduction to basic algebraic equations of the form Ax=B
Working through simplifying a polynomial
Simplifying Cube Roots