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
The answer would be 17/50
Answer:
first two is 300, then it is Car A's speed is 50mph and b is 40mph and for the other two it is probably faster and steeper
Step-by-step explanation:
you look at the graph. you see 6 miles and look up along the 6 mile line to see where it intersects the red line. once you find that spot you go left along that line to find the answer. same with the other and it both ends up at 300
for the next two find the slope, which is 40 and 50
and for the next two there are multiple answers but i t is probably faster and steeper
