# the hyperbola...

• Oct 5th 2006, 01:55 AM
delpin
the hyperbola...
Stuck on a question. Goes like this

Points A(0,0) B(4,0) C(0,3) and P(x,y)

Difference between PY and PA is 6.6

Treating A and B as the foci of the hyperbola what is the equation?

More specifically, the question asks to determine the values necessary to deduce the equation

• Oct 5th 2006, 12:30 PM
Soroban
Hello, delpin!

If no one is responding, it's because we don't understand the problem.

Quote:

Points A(0,0) B(4,0) C(0,3) and P(x,y)

Difference between PY and PA is 6.6 . Where is point Y ?

Treating A and B as the foci of the hyperbola what is the equation?

More specifically, the question asks to determine the values necessary to deduce the equation.

If PB - PA = 6.6, there is enough information to determine the hyperbola.
. . Then what is the purpose of point C?

• Oct 5th 2006, 01:09 PM
delpin
Apologies but PY should have read PB...

Point C is probably to do with another part of the same question though we can work out the difference PC-PB=1.32