# Thread: Name of relation y = x^k

1. ## Name of relation y = x^k

$y$ is proportional to $x$ if

$y = \alpha x$
where $\alpha$ is some constant.

What do you call $y$'s relation to $x$ if

$y = x^\beta$
where $\beta$ is some positive constant

?

2. Originally Posted by scientist47
$y$ is proportional to $x$ if

$y = \alpha x$
where $\alpha$ is some constant.

What do you call $y$'s relation to $x$ if

$y = x^\beta$
where $\beta$ is some positive constant

?
y depends on x according to a Power Law.