graceh58 graceh58
  • 14-03-2017
  • Mathematics
contestada

Find the standard form of the equation of the parabola with a focus at (0, 8) and a directrix at y = -8.

Respuesta :

apologiabiology
apologiabiology apologiabiology
  • 14-03-2017
vertex is directly in middle of directix and focus

distance from 8 to -8 is 16
16/2=8
so 8 below focus (since 8>-8) is the point (0,0
vertex is (0,0)
nice

it opens up because focus is above directix
also it goes up down so
4p(y-k)=(x-h)^2
(h,k) is veretx
we got that (h,k) is (0,0)
and p is distance from vertex to focus which is 8
so
4(8)(y-0)=(x-0)^2
32y=x^2
y=(1/32)x^2
Answer Link

Otras preguntas

find the given polynomial by finding the greatest common monomial factor or the ñegative of the greatest common monomial factor and rewrite the expression. ​
What is the pH at the equivalence point in the titration of 10.0 mL of 0.39 M HZ with 0.200 M NaOH? Ka = 2.4 × 10−6 for HZ.
Simplify the following expression: –10x – 9x + 1
The Reeds are moving across the country. Mr. Reed leaves 4.5 hours before Mrs. Reed. If he averages 40mph and she averages 60mph, how many hours will it take Mr
In the figure, the measure of angle 6 6 is 141° 141 ° . What is the measure of angle 5 5 ?
pls answer im desperate pls
Please I need help with these my grades are low lol
Briana will use a ⅕ gallon pitcher to fill an empty 8/10 gallon jug for her lemonade stand. How much lemonade will she need in order to completely fill the jug?
What is a protest play?
a 0.1 kg object oscillates as a simple harmonic motion along x axis with a frequency f=3.185 hz. At a position x1 , the object has a kinetic energy of o.7 j an