Do you think that the world needs to address the state of mental health in the lives of all Americans? How is lack of talking about mental health affecting the world? Does culture play a part in why people may not talk about their mental health issues?

Are you referring to tectonic plates?

You're asking in the ap section, so i'll give the ap calculus-style answer. alternatively, you can find the vertex of the parabola and use the "y"-coordinate as the answer.

the maximum height can occur at a critical number, that is, a number  such that  .

the derivative of  can be calculated as follows:



find a value of  that is a zero of the derivative:


this is parabola that is opening downward; we can assume there is a maximum at  .

to find that maximum, calculate  .