#### TeheeCat

##### Active Member

- Joined
- Dec 24, 2017

- Messages
- 100

- Gender
- Female

- HSC
- 2019

a) Show that the chord PQ is 2x - (p+q)y + 2apq = 0

b) If OP is perpendicular to OQ, show that the x-intercept of PQ is independent of p and q.

I need help with both, but I'm particularly confused with b. What does it mean by "independent of p and q"?

Even hints are enough for me!

Thank you!