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Mathematics
Mathematics
Problem
If
y
=
m
x
+
4
y = mx + 4
y
=
m
x
+
4
is a tangent to both the parabolas,
y
2
=
4
x
y^2 = 4x
y
2
=
4
x
and
x
2
=
2
b
y
x^2 = 2by
x
2
=
2
b
y
, then
b
b
b
is equal to (a)
−
32
-32
−
32
(b)
−
128
-128
−
128
(c)
−
64
-64
−
64
(d)
128
128
128
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