Precalculus Quiz
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VECTORS
Question 1
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For vector
v
=
⟨
3
,
4
⟩
\mathbf{v}=\langle 3,4\rangle
v
=
⟨
3
,
4
⟩
and scalar
k
=
1
3
k=\dfrac{1}{3}
k
=
3
1
, how much longer/shorter is
k
v
k\mathbf{v}
k
v
compared to
v
\mathbf{v}
v
?
A
It is
3
3
3
times as long.
B
It is
1
3
\dfrac{1}{3}
3
1
as long.
C
It is
2
3
\dfrac{2}{3}
3
2
as long.
D
It has the same length.
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