Question
Question: The equation of the straight line which passes through the point (1, – 2) and cuts off equal interce...
The equation of the straight line which passes through the point (1, – 2) and cuts off equal intercepts from axes, is
A
x + y = 1
B
x – y = 1
C
x + y + 1 = 0
D
x – y – 2 = 0
Answer
x + y + 1 = 0
Explanation
Solution
Q m = ± 1
So, equation of line is y – ( – 2) = ± ( x – 1)
Taking positive sign
x – y – 3 = 0
Taking negative sign
x + y + 1 = 0