Answer:
A
Step-by-step explanation:
Answer:
Hold on a sec i cant remember
On all sides of a triangle it’s about 7 inches
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
I think it's called a coordinate plane
Sorry if I'm wrong
