The Truncus (VCE SSCE Mathematical Methods): Flashcards

U-shaped curve from graphing certain reciprocal functions

$y = \frac{1}{x^2}$ or $y = x^{-2}$ for $x \neq 0$

At $x = 0$

Only positive values

$x = 0$ (the y-axis)

$y = 0$ (the x-axis)

$y = \frac{a}{(x-h)^2} + k$

$x = h$

$y = k$

Vertical stretching, compression, and reflection