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Mathematics
Problem
If the line
4
x
+
3
y
+
k
=
0
4x+3y+k=0
4
x
+
3
y
+
k
=
0
is perpendicular to the line joining the points
(
2
,
−
5
)
(2,-5)
(
2
,
−
5
)
and
(
k
,
1
)
(k,1)
(
k
,
1
)
, then the value of
k
k
k
is a)
−
6
-6
−
6
b)
6.5
6.5
6.5
c)
10
10
10
d)
−
2.5
-2.5
−
2.5
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