What is the equation of the line passing through (2, –3) and parallel to the y-axis ? -Maths 9th

What is the equation of the line passing through (2, –3) and parallel to the y-axis ? -Maths 9th
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Answer :

(c) x = 2 Slope of y-axis = tan 90º                    (∵ y-axis ⊥ x-axis) ∴ Equation of line passing through (2, –3) parallel to y-axis is (y + 3) = tan 90º (x – 2) ⇒ (y + 3) = ∞ (x – 2) ⇒ (x – 2) = \(rac{1}{\infty}\) (y + 3) = 0 ⇒ x = 2.
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