Standard form is, hold a sec
x=2 is directix
that means it opens left or right
so we must use
(y-k)²=4p(x-h)
where vertex is (h,k) and p is distance from focus to vertex
also shortest distance from vertex to directix
the shortest distance from focus to directix is 2p
if p>0 then the parabola opens right
if p<0 then pareabola opens left
so
(-2,0) and x=2
the distance is 4
4/2=2
p=2
wait, positive or negative
focus is to the left of the directix so p is negative
p=-2
vertex is 2 to the right of the focus and 2 to the left of directix
vertex is (0,0)
so
(y-0)²=4(-2)(x-0) or
y²=-8x is da equation
not sure what form is standard tho
( 3 × 4 ) ÷ 2
then multiply that by 11
Answer:
Ummm where is the options ?????
Step-by-step explanation:
Answer:
Step-by-step explanation:
A geometric mean is just ![\sqrt[n]{term one * term two * term three * etc.}](https://tex.z-dn.net/?f=%5Csqrt%5Bn%5D%7Bterm%20one%20%2A%20term%20two%20%2A%20term%20three%20%2A%20etc.%7D)
, where n is the number of terms.
i.e. Geometric mean of 5, 6, 7: there are three values, so the mean is ![\sqrt[3]{5*6*7}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B5%2A6%2A7%7D)
