Distance Formula (right-side-up!)

Courtesy of : http://yaymath.org/

Some have said that the other Distance Formula video is weird to watch because it’s upside down. At first I was like, “Boo.” Then I figured, gotta listen to the people, and film an episode right-side up. So here it is again, Distance Formula… YAY MATH! Visit yaymath.org Videos copyright (c) Yay Math


Common question:

How to solve the distance formula for the variable x?

I need to solve the distance formula for the variable x. So the asnwer should be x=???.
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How is the Distance Formula the same as the Pythagorean Theorem?

How is the Distance Formula the same as the Pythagorean Theorem? No matter how I try to see it, I can’t find any similarities.

Whats the difference between the quadratic formula and this one?

To find the vertex of a parabola, I usually take the quadratic equation, and use the formula -b/2a
Whats the difference between this and the quadratic formula, other than length?
They seem to end up the same
Nevermind, I get it. I feel stupid now. My new question is whats the difference between this and factoring to get [...]