draw a perpendicular line from the directrix passing through the focus, this will be the line of symmetry.
The vertex(h, k) will be located on the line half way between the focus and directrix.
The distance from the focus to the vertex is called the focal length, call it a. The then equation is
(x - h)^2 = 4a(y - k)
the equation can be manipulated to
y = 1/4a(x - h)^2 + k
hope it helps
Answer:
8.5
Step-by-step explanation:
divide 34 by 4 and it gives you 8.5
3x+2 (5x-1)=11
3x +10x -2=11
3x+10x=13
13x=13
X=1
Answer:
y = 6
Step-by-step explanation:
line with (-3 , 6) with slope = 0 is the line perpendicular to x axis
y = 6
Answer:
30km/h.
Step-by-step explanation:
100m/12s = 0.1km/12s
There are 3600 seconds in an hour.
0.1km/12s = 30km/h.
