An ellipse has its foci at (-1, -1) and (-1, -3).
Given that it passes through the point (4, -2), its equation can be written in the form ((x-h)2/a2)/((y-k)2/b2)=1 where a, b, h, k are constants, and a and b are positive. Find a+k.
The answer to your question is 17.
The correct solution was 3.
The correct solution was 18.
The correct answer was 20.
The correct answer was 15.
+73 
