The population (in thousands) of a colony of bacteria t minutes after the introduction of a toxin is given by the function. p(t) =
t^2 + 4 if 0 ≤ t < 5
−5t + 54 if t ≥ 5.
when does the colony die out?

Which lines are parallel? justify your answer. lines p and q are parallel because same side interior angles are congruent. lines p and q are parallel because alternate exterior angles are congruent lines l and m are parallel because same side interior angles are supplementary lines l and m are parallel because alternate interior angles are supplementary.