Tac-Locus/Examples

Examples of Tac-Loci

Arbitrary Example

Let $\FF$ be the family of circles embedded in the Cartesian plane defined by the equation:

$\paren {x - m}^2 + \paren {y - m}^2 = 4$

whose parameter is $m$.

The tac-locus of $\FF$ is the straight line whose equation is $y = x$.