Question

find the equation of the line passing through the intersection of the lines x+y+1=0 and x-y+1=0 and whose distance from the origin is 1.​

Answer 1

Answer:

x+y+1=x-y+1

x+y+1-(x-y+1)

x+y+1-x+y-1

2y=1

y=1÷2

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