Answer:
x = 4
Explanation:
We have to get a straight line that passes through (4,3) point and is parallel to the y-axis i.e. x = 0 straight line.
Now, we know the equation of all the straight lines which are parallel to y-axis is given by the equation x = c .......... (1), where c is any constant.
Now, as the straight line passes through the point (4,3), then it must satisfy equation (1).
Hence, c = 4.
Therefore, x = 4 is the equation of the required straight line. (Answer)