A rock is thrown upward from a 28 foot tall cliff and lands in the ocean some time later. The equation −12x2−34x+28 models the rock's path. 1. Calculate the maximum height the rock reached. 2. Calculate when the rock will hit the the ocean.

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?