Quadratic polynomial and the parabola (1 Viewer)

[NewiJapper]

For

Make a sketch of the parabola showing the vertex, focus and directix.

 

[random-1005]

For

Make a sketch of the parabola showing the vertex, focus and directix.

y^2= -12(x-2)

vertex= ( 2,0)

focal length= 3

it is a sideways parabola open to the left

focus= (-1,0)

directrix: x=5

a few tricks but not too bad, probably Q6 2 unit hsc level

 

[NewiJapper]

it was in q7 of our trials. thanks though ive never come across a sideways parabola before in all my study :/

 

[hscishard]

u srs

 

[NewiJapper]

at least not that i can remember.