Question

[tex]2. If a, b, c are in A.P then the line ax + by + c = 0 will pass through:
a. (-1,2) b. (1,2) c. (-1,1) d. (1,-2)
[/tex]

Answer 1

if we substitute (1,-2) in the eq.ax+by+c=0,we get 2b=a+c which is A.P rule.
so,d is the answer...

Answer 2

i think 1,-2 can be the answer....