- #1
aspirare21
- 7
- 1
Homework Statement
Parabolas with vertex on the x-axis,with axis parallel to the y-axis,and with distance from focus to vertex fixed as "a".
the question is pick your own value of "a". Then for "a" value pick value of "h". What does it mean? I'm confuse.. T__T
Homework Equations
(x-h)² = ±4a(y-k)
(x-h)² = ±4ay
k=0
The Attempt at a Solution
(x-h)² =4ay
2(x-h) =4ay'
answer is (x-h) 2ay'
square both sides
(x-h)² = 4a²(y')²
substitute
4a²(y')² = 4ay
a(y')² = y
I don't know what will happen if i choose a value of "a" then it will generate a value of "h".. T__T