$\begin {array} {1 1} (A)\;(4,3) & \quad (B)\;(3,4) \\ (C)\;(1,4) & \quad (D)\;\bigg( \large\frac{7}{2},\large\frac{7}{2}\bigg) \end {array}$

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- When a line undergoes reflection along the line $y=x$, then the coordinates also change as $(y_1,x_1)$

Step 1 :

The given line undergoes two transformation (i) $y = x $

Hence the coordinates are (1,4)

(ii) Translation through a distance 2 units along the positive $x$ - axis.

$ \therefore $ The final coordinates of the point are $(1+2, 4)$

$ = (3, 4)$

Hence 'B' is the correct option.

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