Question

question attached inside :)

Answer 1

question!! :)

**no answer choices!!

idk how to do this one :(

Answer 2

I'm still confused how to do that :( like how do i simplify it into that format?

Answer 3

how do i find k? i don't understand.. how can i see it right off the bat?

Answer 4

Ok I'll teach you how to complete the square very easily.

Answer 5

okay :) thanks!!

Answer 6

\[y^2-2y-11\]take half the middle term which is -1\[(y-1)^2\]Now we have to take out what we just added. We added -1^2 so we need to take out 1\[(y-1)^2-1\]We can see that when we expand this back out we would have y^2-2y+1-1 so we are left with y^2-2y. The last thing we can't forget it the -11 at the end.\[(y-1)^2-1-11=(y-1)^2-12\]

Answer 7

To check when we expand this we get the original equation

Answer 8

Now to relate this to this problem

Answer 9

ohhh i see :) so hmmm idk if i am right... is my answer k=1 then? idk is that right?? is the value of k, 1?

Answer 10

\[x^2+(y-1)^2-12=0 \rightarrow x^2+(y-1)^2=12\]So now can you see what k is?

Answer 11

is k=1 ?

Answer 12

idk is that right? :O

Answer 13

yup

Answer 14

Did you understand how to complete the square?

Answer 15

yup :) thanks so much1! :) that explanation was great :)

Answer 16

yup

Answer 17

thank you!! :D

Answer 18

yw