.
.
be any point on the parabola. Then, from the definition of a parabola,
![(x-2)^{2}+(y-8)^{2}=(y-10)^{2}\\(x-2)^{2}=(y-10)^{2}-(y-8)^{2}\\(x-2)^{2}=(y-10+y-8)(y-10-(y-8))...............[\because a^{2}-b^{2}=(a+b)(a-b)]\\(x-2)^{2}=(2y-18)(y-10-y+8)\\(x-2)^{2}=2(y-9)(-2)\\(x-2)^{2}=-4(y-9)\\y-9=-\frac{1}{4}(x-2)^{2}\\y=-\frac{1}{4}(x-2)^{2}+9](/tpl/images/0357/9305/4bb8f.png)
Aparabola can be drawn given a focus of
(
2
,
8
)
(2,8) and a d...
Mathematics, 03.11.2019 18:31 grayammip095l9
Aparabola can be drawn given a focus of
(
2
,
8
)
(2,8) and a directrix of
y
=
10
y=10. write the equation of the parabola in any form.
Answers: 2
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