Help ,MEDAL AND FAN!!!

Question

anonymous · Answer

attachment

accessdenied · Answer

The orthocenter is the point where the three altitudes of the triangle intersect.
You do not have a formula to find orthocenter from three points, correct?

accessdenied · Answer

In that case, a rough plan to obtain the orthocenter is by finding the equation of the lines of two altitudes in the triangle, and then find their intersection.  This requires two properties of an altitude:
   1.   Altitudes go through one vertex.
   2.   Altitudes are perpendicular to the opposite segment from the vertex.

anonymous · Answer

I got B

anonymous · Answer

but i got it wrong

accessdenied · Answer

How did you get B?  Like, the work you did for that answer..

accessdenied · Answer

Or since this is multiple choice, you could quickly eliminate choices just by sketching the three points and drawing the altitudes in to see for yourself where they all meet up roughly:

accessdenied · Answer

|dw:1397601888373:dw|
The altitudes of this rough sketch.

accessdenied · Answer

|dw:1397601958547:dw|
You can extend the base.
Now, in terms of your four choices, can you see roughly which point that point is closest to our of the options?