1 Answer

Kschneid · Answer 1 · 2017-03-20T21:55:08+0000

Hello,

Parabola has for equation:

y=k(x-6)²+27
and -81=k*(-6)²+27==>k=-3

so y=-3(x-6)²+27
y=-3(x²-12x+27)
if y=0==> x²-12x+27=0
Δ=12²-4*27=36=6²
==>x=9 or x=3

0 Comments

Please log in or register to add a comment.

Please log in or register to answer this question.

1 Answer

0 Comments

Please log in or register to add a comment.

No related questions found

Other Questions