Q35 of 59 Page 178

Equations of diagonals of the square formed by the lines x = 0, y = 0, x = 1 and y = 1 are

Given lines are x = 0, y = 0, x = 1 and y = 1 form a square of side 1 unit


By the given lines we form a square OABC having corners O (0, 0),


A (1, 0), B (1, 1) and C (0, 1).


Now, we find the equation of diagonal AC


We know that, when two points are given then, equation of line is




⇒ y = -1 (x – 1)


⇒ y = -x + 1


⇒ x + y = 1


Equation of diagonal OB is



⇒ y = 1 (x)


⇒ y = x


Hence, the correct option is (a)

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