Question

what is the equation of the line parallel to y-axis and passing through the points (3,0)​

Answer 1

If the line is parallel to the y-axis then the value of y is 0.

So the equation is X+Y=3

Answer 2

The equation of the line parallel to y axis is x=a where a is x intercept .

As a line passes through point(3,0) ,the value of a for this equation is 3.

Thus the equation of the line is

x=3

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