Determining Rules (VCE SSCE Mathematical Methods): Quizzes

Info needed to write equations completely

Two points to create simultaneous eqns

$y = \frac{a}{x-h} + k$

$a = 4$

Opportunities to eliminate one variable

$y = a\sqrt{x-h} + k$

Dividing one equation by another

$(x-h)^2 + (y-k)^2 = r^2$

$r = 5$

Verify by substituting original points