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Mathematics
Problem
The line
A
x
+
B
y
+
6
=
0
Ax + By + 6 = 0
A
x
+
B
y
+
6
=
0
passes through the points
(
1
,
2
)
(1, 2)
(
1
,
2
)
and
(
3
,
−
1
)
(3, -1)
(
3
,
−
1
)
. Which ordered pair
(
A
,
B
)
(A, B)
(
A
,
B
)
satisfies this condition? a)
(
−
12
7
,
−
18
7
)
\left(-\dfrac{12}{7},-\dfrac{18}{7}\right)
(
−
7
12
,
−
7
18
)
b)
(
−
18
7
,
−
12
7
)
\left(-\dfrac{18}{7},-\dfrac{12}{7}\right)
(
−
7
18
,
−
7
12
)
c)
(
−
3
,
−
2
)
(-3,-2)
(
−
3
,
−
2
)
d)
(
18
7
,
12
7
)
\left(\dfrac{18}{7},\dfrac{12}{7}\right)
(
7
18
,
7
12
)
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