Is line 1 is parallel to the y-axis ?. 1)the equation of line 1 is x=4 . 2) the points (4,2) and (4,-5) are on the line 1.

Yes, line 1 is parellel to the y axis because the equation of a line parallel to the y axis will have the equation x = k, where k is any constant. In this case we have x = 4.

Md.Nazrul Islam wrote:Is line 1 is parallel to the y-axis ?. 1)the equation of line 1 is x=4 . 2) the points (4,2) and (4,-5) are on the line 1. from Stat.1, X=4; Any line with X=Constant will be parallel to Y axis. Sufficient condn. from Stat.2, X=4 for both the points, hence it will be parallel to Y axis. Sufficient condn. Ans. D.

Md.Nazrul Islam wrote:Is line 1 is parallel to the y-axis ?. 1)the equation of line 1 is x=4 . 2) the points (4,2) and (4,-5) are on the line 1. (1) The equation of line 1 is x = 4 implies line 1 is parallel to y-axis, as x = 4 is a line passing through the point (4, 0), which is parallel to y-axis; SUFFICIENT. (2) The points (4,2) and (4,-5) are on the line 1 again implies that line 1 is parallel to y-axis; SUFFICIENT. The correct answer is D.

Md.Nazrul Islam wrote:Is line 1 is parallel to the y-axis ?. 1)the equation of line 1 is x=4 . 2) the points (4,2) and (4,-5) are on the line 1. Line parallel to y axis is of the fornm X=constant. hence D

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