Mrs. Chavis's statistics class has 26 students in it, 14 girls and 12 boys. She uses a calculator to select two students at random to solve a problem on the board.

Answer dot(3) is most used;

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  .