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KEAM 2017 Math Paper
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© examsnet.com
Question : 25
Total: 120
The vertex of the parabola
y
2
−
4
y
−
x
+
3
=
0
is
(– 1, 3)
(– 1, 2)
(2, – 1)
(3, – 1)
(1, 2)
Validate
Solution:
We have
y
2
−
4
y
−
x
+
3
=
0
⇒
(
y
−
2
)
2
−
4
−
x
+
3
=
0
⇒
(
y
−
2
)
2
=
(
x
+
1
)
∴
Vertex of the parabola
=
(
−
1
,
2
)
© examsnet.com
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