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Question
Why is a first degree polynomial in two variables ax + by + c = 0, called a linear equation?
Options:
A .  It has infinitely many solutions
B .  The geometrical representation is a straight line
C .  It has two variables
D .  None of the above
Answer: Option B
:
B
The degree (the highest power on any variable) of the given equation is 1. Hence, its geometrical representationis a straight line.

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