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Problem
Problem
The equations of the common tangents to the parabolas
y
=
x
2
y = x^2
y
=
x
2
and
y
=
−
(
x
−
2
)
2
y = -(x - 2)^2
y
=
−
(
x
−
2
)
2
is/are a.
y
=
4
(
x
−
1
)
y = 4(x - 1)
y
=
4
(
x
−
1
)
b.
y
=
0
y = 0
y
=
0
c.
y
=
−
4
(
x
−
1
)
y = -4(x - 1)
y
=
−
4
(
x
−
1
)
d.
y
=
−
30
x
−
50
y = -30x - 50
y
=
−
30
x
−
50
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