Questions
If a, b, c are in A.P., then the straight line ax + by + c = 0 will always pass through a fixed point whose coordinates are
a
(–1, –2)
b
(1, 2)
c
(–1, 2)
d
(1, –2)
detailed solution
Correct option is D
Since a, b, c are in A.P., ∴ 2b = a + cor a – 2b + c = 0⇒ The line ax + by + c = 0 passes through the point(1, –2).Talk to our academic expert!
Similar Questions
If the lines ax+by+c = 0, bx+cy+a = 0 and cx+ay+b=0 are concurrent then the point of concurrency is
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