MCQ
The equation of the $y-$axis is:
  • $x = 0$
  • B
    $y = 0$
  • C
    $x + y = 0$
  • D
    $x = y$

Answer

Correct option: A.
$x = 0$
Since the $x-$coordinate of any point on $y-$axis is always $0.$
So, the equation of the $y-$axis is $x = 0.$

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