Answer:
Answer is III line
[tex]x - 3y - 7 = 0[/tex]
Step-by-step explanation:
Given that the line passes through (1,-2)
Hence when we substitute x=1 and y =-2 the equation should be satisfied
I equation
[tex]3x - y - 7 = 0\\3(1)-(-2) \neq 7\\x - 3y + 7 = 0\\1-3(-2)+7 = 14 \neq 0x - 3y - 7 = 0\\1-3(-2)-7 =0\\[/tex]
Hence third equation is the correct answer.