Given:
The given equation is

To find:
The vertex, focus, and directrix.
Solution:
The equation of a parabola is
...(i)
where, (h,k) is vertex,
and directrix is 
We have,

It can be written as

...(ii)
On comparing (i) and (ii), we get

Vertex of the parabola is (2,3).



Therefore, the focus of the parabola is
.
Directrix of the parabola is



Therefore, the directrix of the parabola is
.
2L +2W=160
100+ 2W=160
subtract 100 from each side
2W=60
divide by two each side
W=30
use the formula L×W=Area or 50×30 which equals 150 the are of the pasture is 150 feet²
Answer:
F(x)=6x^3+2x
Step-by-step explanation:
Odd functions have solely odd powers of x.
F(x)=4x^3+7 is actually F(x) = 4x^3 + 7x^0, which is neither even nor odd.
F(x)=6x^3+2x has only odd powers of x: x^3 and x^1. This is the answer.