The points (4,0), (0,4), (-4,0), and (0, -4) form
The focus of the parabols x2=−16y is
The given four points (0, 0), (0, 4), (-4, 4) and (-4, 0) represents:
Find values of k if area of triangle is 4 square units and vertices are
(i) (k, 0), (4, 0), (0, 2) (ii) (−2, 0), (0, 4), (0, k)