Question

# If a line passes through origin, then definitely is true

A
a=0
B
c=0
C
b=0

Solution

## The correct option is B c=0In the general form of an equation ax+by+c=0, if c=0 then the equation becomes ax+by=0  Now notice that if we substitute x=0, we will definitely end up with y=0. And the only point where x=0 and y=0 is the origin.

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