AP Precalculus Quiz
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FUNCTIONS INVOLVING PARAMETERS, VECTORS, AND MATRICES
Question 1
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Which of the following functions
L
:
R
2
→
R
2
L: \mathbb{R}^2 \to \mathbb{R}^2
L
:
R
2
→
R
2
is NOT a linear transformation?
A
L
(
x
,
y
)
=
(
x
,
y
)
L(x, y) = (x, y)
L
(
x
,
y
)
=
(
x
,
y
)
B
L
(
x
,
y
)
=
(
y
,
x
)
L(x, y) = (y, x)
L
(
x
,
y
)
=
(
y
,
x
)
C
L
(
x
,
y
)
=
(
x
,
5
)
L(x, y) = (x, 5)
L
(
x
,
y
)
=
(
x
,
5
)
D
L
(
x
,
y
)
=
(
0
,
0
)
L(x, y) = (0, 0)
L
(
x
,
y
)
=
(
0
,
0
)
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