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Mathematics
Mathematics
Problem
For the curve
x
=
t
2
−
4
t
x=t^{2}-4t
x
=
t
2
−
4
t
and
y
=
3
t
+
5
y=3t+5
y
=
3
t
+
5
, at which value of
t
t
t
is the tangent vertical (i.e.,
d
y
d
x
\dfrac{dy}{dx}
d
x
d
y
is undefined)? a)
0
0
0
b)
4
4
4
c)
2
2
2
d)
−
2
-2
−
2
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