Question

What is an equation of a parabola with the given vertex and focus?

vertex: (5, 4) ; focus: (8, 4)

Answer 1

since y coordinates are same so parabola opens along x axis

(y-h)^2=4p(x-k)

p=8-5=3

where h=4 and k=5

Answer 2

Wait wait what now ?

Answer 3

just put the values of p h and k in the equation

(y-h)^2=4p(x-k)

Answer 4

Whats y ?

Answer 5

and x ?

Answer 6

they are always present in the equation .
(y-4)^2=12(x-5)

Answer 7

read the following article complete.
http://www.purplemath.com/modules/parabola.htm

Answer 8

Okay so im about to solve that

Answer 9

Will my answer be a negitive or a positive ?

Answer 10

(y-4)^2=12(x-5) is the Answer

Answer 11

That can't be are you sure its not (y-4)^2=12(x+5)

Answer 12

@Kayy_Drizzyy your formula gives a parabola with a vertex at (-5,4) instead of (5,4) as the problem requests.

Answer 13

yes agree with whpalmer.

Answer 14

so would my answer me x 1/12 =(y – 4)2 + 5

Answer 15

If you want it in x= form, it would be
\[(y-4)^2=12(x-5)\]\[x=\frac{(y-4)^2}{12}+5\]

Answer 16

Hold on.

Answer 17

haha , apparently this is a multiple choice question

Answer 18

Yes it is and im getting comfused because im trying to solve it

Answer 19

For some reason were all getiting different answers.

Answer 20

Help @sami-21

Answer 21

@dumbcow

Answer 22

i have been summoned :)

well as mentioned above the vertex and focus lie horizontal to each other
thus it will be "x = something"

then plug in the vertex (5,4) to each of the 2 to check which one works

Answer 23

would my answer be between A & C ?

Answer 24

yes

Answer 25

You don't see the equation Sami and I showed you in the answer list?

Answer 26

I do im going back over you guys sorry for being slow. I'm just tired and trying to complete this assignment.

Answer 27

@dumbcow is it A

Answer 28

My old math teacher would say "is that an answer, or a prayer?" :-)

Answer 29

Kayy, dont forget to be courteous and give medals.

Answer 30

Have some faith in your abilities. Make mistakes with confidence, that's what I say :-)

Answer 31

Yes, it is A.

Answer 32

i concur ... answer is A

Answer 33

Thanks you guys

Answer 34

I wish i could give medals to everyone but unfort. i have to choose one