If (-4, -5) is one vertex and \( \Large 7x-y+8=0 \) is one diagonal of a square then the equation of second diagonal is:
Correct Answer: Description for Correct answer:
Equation of perpendicular line to \( \Large 7x-y+8=0 \) is \( \Large x+7y=h \) which is passes through \( \Large \left(-4,\ 5\right) \)
h = 31
So, equation of another diagonal is \( \Large x+7y=31 \)
Part of solved Straight lines questions and answers :
>> Elementary Mathematics >> Straight lines