Seg AB is parallel to Y-axis and coordinates of point A are (1,3) then co-ordinates of point B can be ........ Fill in the blank using correct alternatives.
(A) (3,1)
(B) (5,3)
(C) (3,0)
(D) (1,-3)
Answers
Answered by
218
segment AB is parallel to Y - axis . It means, slope of segment AB = tan90° = 1/0
Let assume point B = (x, y)
Now, if two point (x₁,y₁) and (x₂,y₂) are given then slope of line joining the points is given by by (y₂ - y₁)/(x₂- x₁)
So, slope of AB = (y - 3)/(x - 1)
1/0 = (y - 3)/(x -1)
x - 1 = 0 ⇒ x = 1
So, any points lies on line AB whose absissa must be 1
Here absissa of option (d) (1,3) is 1
so, option (d) is correct choice.
Let assume point B = (x, y)
Now, if two point (x₁,y₁) and (x₂,y₂) are given then slope of line joining the points is given by by (y₂ - y₁)/(x₂- x₁)
So, slope of AB = (y - 3)/(x - 1)
1/0 = (y - 3)/(x -1)
x - 1 = 0 ⇒ x = 1
So, any points lies on line AB whose absissa must be 1
Here absissa of option (d) (1,3) is 1
so, option (d) is correct choice.
Answered by
53
Answer:
Option D 1 -3
Step-by-step explanation:
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