find the equation of hyperbola, having center at origin.. a point moves so that the difference between its distances from (0,5) and (0, -5) is 8. find the equation of the locus. ITS ANSWER IS 9Y^2 - 16X^2 = 144

Question

dumbcow · Answer

i dont quite get what they mean but the equation you gave yields hyperbola that opens vertically with verticies at (0,+-4) and foci at (0.+-5)

dumbcow · Answer

oh now i get the wording...haha i forgot the definition of focus point

anonymous · Answer

yes opens vertically..