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  • If are in A.P, then <img alt="\mathrm{a x+b y+c=0}" src="https://entrancecorner.o

If \mathrm{a, b, c} are in A.P, then \mathrm{a x+b y+c=0} represents

Option: 1

a single line


Option: 2

a family of concurrent lines


Option: 3

a family of parallel lines


Option: 4

none of these


Answers (1)

best_answer

Since \mathrm{a, b, c} are in A.P.

\mathrm{\Rightarrow \quad 2 b=a+c \Rightarrow a-2 b+c=0}
\mathrm{\Rightarrow }     Family of lines is concurrent at the point \mathrm{(1,-2) }
 

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chirag

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