Direct Variation (VCE SSCE General Mathematics): Flashcards

Variables related so one increases at constant rate as other increases

$y = kx$ where $k$ is a positive constant

Constant of variation

$\propto$

$y$ is proportional to $x$

Straight line passing through origin $(0, 0)$

$k = \frac{y}{x}$

Also increases

Is directly proportional to

$y = kx^n$