# Parabola and locus [duplicate]

This question is an exact duplicate of:

Let normals are drawn to the parabola $y^2=8x$ from any point on the line $y=−4$ . Find the locus of vertices of triangle formed by the corresponding tangents ?

There are several conditions on the point A(t,−4) on the line $y=−4$ .

As locus is a part of the hyperbola $y=8x$ , but i find it very difficult to find.

## marked as duplicate by amd, Community♦Mar 23 '18 at 14:18

This question was marked as an exact duplicate of an existing question.

• You really shouldn't repost a question that's been put on hold; it's better to work on improving the question there. Also, the hyperbola is $y=8/x$, not $y=8x$; it's written correctly at math.stackexchange.com/questions/2701498/parabola-and-locus – Barry Cipra Mar 22 '18 at 17:00
• The first one is also posted by me – Anna Mar 23 '18 at 14:19
• I had edited it but didnt get any answers and didnt go off hold – Anna Mar 23 '18 at 14:20