Question

help me to find out this question

Answer 1

x-y-1=0 is the right answer.
bcz (1,0) satisfies the line equation and the slope of the line is 1 .
where,
tan45° =1= slope of line .

Answer 2

the slope of the line is =tan45°=1=m

according to the point intercept form,
(y-y1)=m(x-x1)
=>(y-0)=1(x-1)
=>y=x-1
=>x-y-1=0

hope it will help you

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