Question

Find the focus of the oarabola y2=kx, which passes through the point(1,2)

Answer 1

Answer:

y²=Kx passes through the point (1,2)

(2)²=k(1)

4=k

or k= 4

then,

y²=4ax

y²=4(1/4)x

so,

$a = \frac{1}{4}$

$Focus (a,0) = ( \frac{1}{4},0)$

hope it will help you ☺️