Let's Tute
Distance Formula & Pythagorean Theorem
In this online video we will learn Introduction to coordinate geometry, what is cartesian coordinate system, quadrants, x-axis, y-axis in plane
Brian McLogan
What you need to know: Conic Sections
In this video I attempt to prepare you for our chapter on Conic Sections. We will do this by first covering completing the square and then identifying the midpoint as well as endpoint when given two points. We will then work on writing...
Khan Academy
Distance Formula
Explaining the distance formula as "an application of the Pythagorean Theorem" might relieve some of your young mathematicians who are scratching their head at all the new concepts. Sal demonstrates how to take the distance between any...
Khan Academy
Midpoint Formula
The midpoint formula - which Sal maintains is "silly to memorize" since you simply average - is the focus of this video. Viewers will appreciate the seamless transition between algebraic and geometric concepts in this lecture.