Problem:
Solve for $y=f(x)$ given the following parametric equations:
$y(t)=(3 t+19)^2, x(t)=-3 t-15$
Answer:
$y=x^2-8 x+16$
{'source': 'AMPS', 'file': 'amps/mathematica/algebra/parametric_equations/13539.txt'}