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Byju's Answer
Standard XII
Mathematics
Standard Equation of Parabola
Find the equa...
Question
Find the equation of the parabola with vertex
(
0
,
0
)
and focus at
(
−
1
2
,
0
)
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Solution
Since the focus of the parabola is
F
(
−
1
2
,
0
)
which lies on
x
−
axis itself is the axis of the parabola.
Also, the vertex of the parabola is at
O
(
0
,
0
)
∴
,
the parabola is of the form
y
2
=
−
4
a
x
with
a
=
1
2
Hence the required equation of the parabola is
y
2
=
−
4
×
1
2
x
=
−
2
x
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