Answer:
Step-by-step explanation:
7 = y/4
7*4 = y
y = 28
Hmm, y=1 is directix
means it opens up or down
we will be using
(x-h)²=4p(y-k) where (h,k) is vertex and p is the distnace from focus to vertex and from vertex to direcitx
focus is (-1,-3)
find distance between y values because directix is a y value
midpoint is the vertex
from -3 to 1 is 2 units
since focus is below directix, it opens down, and p is negative
it is 2 units above focus
so at (-1,-1)
and p=-2
(x-(-1))²=4(-2)(y-(-1))
(x+1)²=-8(y+1) is da equation
Answer:
The correct option is B.
Step-by-step explanation:
A function is called an exponential function if it has common ratio.
A function is called an linear function if it has common difference.
In option A.
Since the given table has different ratio, therefore it is not an exponential function. Option A is incorrect.
In option B.
Since the given table has common ratio, therefore it is an exponential function. Option B is correct.
In option C.
Since the given table has different ratio, therefore it is not an exponential function. Option C is incorrect.
In option D.
Since the given table has different ratio, therefore it is not an exponential function. Option D is incorrect.
