PointHard
Question
A ray of light passing through the point A (1, 2) is reflected at a point B on the x-axis line mirror and then passes through (5, 3). Then the equation of AB is
Options
A.5x + 4y = 13
B.5x - 4y = - 3
C.4x + 5y = 14
D.4x - 5y = - 6
Solution
Images of (5, 3) in x-axis
is (5, -3)
Now, line AB will also
pass through (5, -3)
∴ equation of AB is y - 2 =
(x - 1)5x + 4y = 13
Create a free account to view solution
View Solution FreeMore Point Questions
If D,E,F are mid points of the sides AB, BC and CA of a triangle formed by the points A(5, −1) B(−7, 6) and ...Four points (x1, y1), (x2, y2), (x3, y3) and (x4, y4) are such that (x1x3 + x2x4 + y1y2 + y3y4)Then these points are ver...(xi, yi) are vertices of a equilateral triangle ABC such that (x1 − 2)2 + (y1 − 3)2 = (x2 − 2)2 + (y2 ...In the ᐃABC, the coordinates of B are (0, 0), AB = 2, ∠ABC = π/3 and the middle point of BC has the coo...If one diagonal of a square is along the line x = 2y and one of its vertex is (3, 0) then its sides through this vertex ...