Data Transformations (VCE SSCE General Mathematics): Flashcards

Changing a variable's scale using a mathematical function

Transforming data to make a non-linear relationship linear

Squared ($x^2$) and reciprocal ($\frac{1}{x}$)

Horizontal axis changes from $x$ to $x^2$

For parabolic relationships where $y \propto x^2$

Horizontal axis changes from $x$ to $\frac{1}{x}$

For hyperbolic/inverse variation where $y \propto \frac{1}{x}$

As $x$ increases, $y$ increases

As $x$ increases, $y$ decreases

The constant of variation ($k$)