# Math Help - Seeking name for a formula

1. ## Seeking name for a formula

Does this relationship have a name?
Code:
x = y + 1
x^2 - y^2 = x + y

2. Originally Posted by dwks
Does this relationship have a name?
Code:
x = y + 1
x^2 - y^2 = x + y
interesting, and about as useful as "Quick's" property

3. Originally Posted by dwks
Does this relationship have a name?
Code:
x = y + 1
x^2 - y^2 = x + y
(shrugs) As $y = x - 1$ (the second equation adds nothing new) this relationship is merely the line with slope 1 and y-intercept (0, -1).

-Dan

4. Originally Posted by dwks
Does this relationship have a name?
Code:
x = y + 1
x^2 - y^2 = x + y
Its a consequence of the difference of two squares formula:

$x^2-y^2=(x+y)(x-y)$

RonL

5. Hmm, okay. Thanks.