# Math Help - Vector-Valued Function

1. ## Vector-Valued Function

Ok, last one for tonight, i can't believe i am stuck on this one:

Find the maximum height above the -plane of a point on

So i get the answer to be $zmax=2$ and the point to be $(0, 0, 2)$ but this answer is wrong, i know it is .something that is simple that i cannot figure out.

2. Originally Posted by Esc
Ok, last one for tonight, i can't believe i am stuck on this one:

Find the maximum height above the -plane of a point on

So i get the answer to be $zmax=2$ and the point to be $(0, 0, 2)$ but this answer is wrong, i know it is .something that is simple that i cannot figure out.

The maximum height occurs when t(2 - t) has it's maximum .......

Hint: The function z = t(2 - t) is a parabola with maximum turning point at (1, 1) ......

3. Originally Posted by Esc
Ok, last one for tonight, i can't believe i am stuck on this one:

Find the maximum height above the -plane of a point on

So i get the answer to be $zmax=2$ and the point to be $(0, 0, 2)$ but this answer is wrong, i know it is .something that is simple that i cannot figure out.