Negative is the opposite of positive, so the only true opposites are. -2,2 8,-8
Answer:
7m
Step-by-step explanation:
1. find ratio of small to large triangle (6:18 = 1:3 / 8:24 = 1:3)
2. find blank side of smaller triangle (if ratio is 1:3 then take the large triangle side that matches the smaller unknown side and divide by 3 to size down the line to find unknown side)
Answer = 7m
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
.
Answer:
y= -4x+4
Step-by-step explanation:
y=mx+b
where x=-1, y=8, and m=-4
8=(-4)(-1)+b
8=4+b
4=b
Thus, y= -4x+4