Answer:
Step-by-step explanation:
Given : focus of (1, -3) and a directrix of y= -1
The distance between focus and directrix is 2p
The distance between (1,-3) and y=-1 is 2
So 2p = 2 and p =1
Vertex (h,k) lies inbetween the focus and directrix
focus is (h, k-p)
given focus is (1,-3)
so h=1 and k-p = -3 ( we got p =1)
So k-1= -3 , k= -2
Hence, vertex is (1,-2), h=1 and k = -2
Here focus at the bottom and directrix at the top
so parabola opens down
hence a= -1/4
Plug it in the equation
We apply the mid point formula
That is for two points
The mid point is given by
So we plug the values
So we can simplify it now factor 2 on both
We get
we can cancel out the 2 in numerator and denominator
So
Final answer is Option D
(m+p),(n+r)
Answer:
the anwser is b 0.4 for your quesstion
Answer:
1. 1 3/8, 2 1/4, 2 1/2, 2 7/8, 3 1/8, 3 1/4
2. 12
3. 1 7/8
4. 5 3/4
5. 4 5/8
24 is all four of the definitions.